Harvard Catalyst Profiles

Contact, publication, and social network information about Harvard faculty and fellows.

Alan Michael Leichtner, M.D.

Concepts (416)

Concepts are derived automatically from a person's publications.
Concepts are listed by decreasing relevance which is based on many factors, including how many publications the person wrote about that topic, how long ago those publications were written, and how many publications other people have written on that same topic.
Name Number of Publications Most Recent Publication Publications by All Authors Concept Score Why?
Gastroenterology920245711.370 Why?
Education, Medical, Graduate7202423631.190 Why?
Celiac Disease1020228221.180 Why?
Fellowships and Scholarships7202411161.160 Why?
Pediatrics9202035860.850 Why?
Hospitals, Pediatric2202418540.780 Why?
Curriculum4202437180.760 Why?
Faculty120243830.720 Why?
Duodenum420194860.700 Why?
Professional Competence220144310.690 Why?
Torture12020660.670 Why?
Faculty, Medical3202411920.550 Why?
Endoscopy, Digestive System220193510.540 Why?
Clinical Competence6202047830.500 Why?
Humanism12014870.430 Why?
Diet, Gluten-Free420222800.400 Why?
Hospitals, Teaching1201611660.390 Why?
Mentors120166610.380 Why?
Crohn Disease15201422750.360 Why?
Internship and Residency4202458700.340 Why?
Education, Medical2202417270.330 Why?
Colitis, Ulcerative15200919190.290 Why?
Tacrolimus320007330.270 Why?
Child542024797990.270 Why?
Academic Medical Centers3202427540.200 Why?
Colonoscopy4202413870.200 Why?
Hematology120242410.180 Why?
Constipation220165610.180 Why?
Needs Assessment2201911390.180 Why?
Reference Standards1202410040.170 Why?
Inflammatory Bowel Diseases8200424210.170 Why?
Vitamin A Deficiency21998880.170 Why?
National Socialism12020540.170 Why?
Child, Preschool352022420560.170 Why?
Biopsy8201967710.170 Why?
Sex Education12019920.160 Why?
House Calls120201600.160 Why?
Vitamin E Deficiency11998300.150 Why?
Lost to Follow-Up120181230.150 Why?
Immunosuppressive Agents3200041670.140 Why?
Humans8420247606130.140 Why?
Autoimmune Diseases5201422500.130 Why?
Intestinal Mucosa6201730220.130 Why?
Aminosalicylic Acids11995370.130 Why?
Ileocecal Valve11995210.130 Why?
Transglutaminases120171970.130 Why?
Gastroscopy119972090.120 Why?
Diseases in Twins219954470.120 Why?
Immunoglobulin A320179780.120 Why?
Single-Blind Method1201915780.120 Why?
Ethics, Medical120207830.120 Why?
Fibroblast Growth Factor 2119975900.120 Why?
Colitis4199612290.120 Why?
Pancreatin1199490.120 Why?
Immunologic Deficiency Syndromes120185570.120 Why?
Gastrostomy119973210.110 Why?
Adolescent422019878090.110 Why?
Esophagus4199910230.110 Why?
Adenomatous Polyposis Coli220092180.110 Why?
Nutrition Disorders119942050.110 Why?
Esophageal and Gastric Varices219952080.110 Why?
Proctocolectomy, Restorative220091900.110 Why?
Lymphocytosis220081190.110 Why?
Esophagoscopy119953900.110 Why?
Esophagitis219991630.100 Why?
Gastrointestinal Hemorrhage4199811310.100 Why?
GTP-Binding Proteins120179510.100 Why?
Stomach119966940.100 Why?
Receptors, LDL219844880.100 Why?
Intestinal Obstruction119954340.100 Why?
Intraoperative Care119957680.100 Why?
Autoimmunity2202213700.100 Why?
Continuity of Patient Care1201810660.100 Why?
Colon6200817880.100 Why?
Lipoproteins, LDL219846410.090 Why?
Teaching1201911690.090 Why?
Education, Medical, Continuing120168300.090 Why?
Female5120243912460.090 Why?
Infant252017360530.090 Why?
Pancreaticoduodenectomy119945080.090 Why?
Enteritis220081620.090 Why?
Male4420243597180.090 Why?
Cystic Fibrosis1201912740.080 Why?
Food Services120122050.080 Why?
Antacids22008940.080 Why?
Endoscopy2201918380.080 Why?
Endoscopy, Gastrointestinal119958670.080 Why?
Epidermolysis Bullosa, Junctional12008120.080 Why?
Integrin beta412008310.080 Why?
Intestinal Diseases220085060.080 Why?
Parturition120124460.080 Why?
Digestive System Abnormalities12008490.080 Why?
Pylorus12008860.080 Why?
Lymphocytes1199626110.080 Why?
Chi-Square Distribution2200934650.080 Why?
Program Evaluation1201624930.080 Why?
Colonic Pouches120091220.080 Why?
Anti-Ulcer Agents120081130.080 Why?
Boston2202192780.070 Why?
Gastrointestinal Diseases4199811890.070 Why?
Hepatitis, Chronic11987520.070 Why?
Cyclosporins119872160.070 Why?
T-Lymphocytes, Cytotoxic1201417650.070 Why?
Diarrhea4200813190.070 Why?
Checklist120148270.070 Why?
Universities120129920.070 Why?
Chilblains12006160.070 Why?
Prospective Studies92020543060.070 Why?
Predictive Value of Tests32019152860.070 Why?
Pancreatitis2200311000.070 Why?
Hydronephrosis119872710.070 Why?
Referral and Consultation2201835980.070 Why?
Sensitivity and Specificity32019146610.060 Why?
Wound Healing1199727880.060 Why?
Adult2120242200070.060 Why?
Health Personnel1201933100.060 Why?
Ulcer219972040.060 Why?
Hexosephosphates11984260.060 Why?
Mannosephosphates11984110.060 Why?
Scoliosis119917350.060 Why?
Esophageal Diseases219961680.060 Why?
Remission Induction3200023920.060 Why?
Lovastatin119841160.060 Why?
Statistics, Nonparametric1200928520.060 Why?
Fruit2198811600.050 Why?
Procollagen319891880.050 Why?
Pirenzepine120031160.050 Why?
United States62024724480.050 Why?
L-Lactate Dehydrogenase120034120.050 Why?
Patient Compliance1201226880.050 Why?
Aspartate Aminotransferases120034150.050 Why?
Career Mobility120242580.050 Why?
Societies, Medical2201339050.050 Why?
Data Collection1201033150.050 Why?
Alanine Transaminase120036070.050 Why?
Valproic Acid120034410.050 Why?
Haploinsufficiency120223290.040 Why?
Endothelial Growth Factors220016730.040 Why?
Hepatocyte Growth Factor120012670.040 Why?
Blood Sedimentation219982340.040 Why?
Attitude of Health Personnel1201438650.040 Why?
Quality Improvement1201538350.040 Why?
Antimanic Agents120035200.040 Why?
Lymphokines220019270.040 Why?
Azathioprine120003560.040 Why?
Pharmaceutical Solutions11998150.040 Why?
Interdisciplinary Studies12019860.040 Why?
Glutens120212400.040 Why?
Competency-Based Education120202180.040 Why?
Primary Health Care1201546470.040 Why?
Carcinoma, Hepatocellular2199622990.040 Why?
Gangliosides119991310.040 Why?
Aluminum119981520.040 Why?
Complementary Therapies120024860.040 Why?
Immunologic Factors1200715880.040 Why?
Malabsorption Syndromes319881350.040 Why?
Sigmoidoscopy219961500.040 Why?
Reoperation3199742890.040 Why?
Parenteral Nutrition, Total119983030.040 Why?
Growth319893650.040 Why?
Proctitis11997410.040 Why?
Hepatitis B virus119815220.040 Why?
Drug Contamination119981520.040 Why?
Gastroscopes11997190.040 Why?
Duodenoscopy12017450.040 Why?
Accreditation120204770.030 Why?
Enzyme-Linked Immunosorbent Assay3200138020.030 Why?
Games, Experimental12016320.030 Why?
Retrospective Studies122021803450.030 Why?
Prenatal Exposure Delayed Effects1200824960.030 Why?
Physicians1201445910.030 Why?
Hypersensitivity2200811550.030 Why?
Intestines2200819070.030 Why?
Hepatitis B119817010.030 Why?
Ileal Diseases11995690.030 Why?
Schools, Medical120228780.030 Why?
Infant, Newborn82017261790.030 Why?
Arteriovenous Malformations119983970.030 Why?
Medical History Taking120197730.030 Why?
Stomach Diseases119961330.030 Why?
Liver Neoplasms2199643190.030 Why?
Young Adult62019587480.030 Why?
Cellulitis119972070.030 Why?
Receptors, Interleukin-2119965620.030 Why?
Vitamin A119986130.030 Why?
Leadership1202413710.030 Why?
Liver Function Tests119965240.030 Why?
Liver Regeneration119962130.030 Why?
Siblings120188240.030 Why?
Xylose11994280.030 Why?
4-Aminobenzoic Acid11994220.030 Why?
Hydroxycholecalciferols11994440.030 Why?
Catheters, Indwelling119974280.030 Why?
Equipment Failure119975770.030 Why?
Postoperative Complications31997156790.030 Why?
Ligation119954480.030 Why?
Odds Ratio3200897160.030 Why?
Gastric Emptying219942430.030 Why?
Sclerotherapy119951810.030 Why?
Vitamin E119988720.030 Why?
Gastroesophageal Reflux319998160.030 Why?
Laparotomy119954650.030 Why?
Hemangioma119987280.030 Why?
Eosinophilia219995590.030 Why?
Dimerization120148910.030 Why?
Chloroquine219842770.030 Why?
Growth Disorders219976530.030 Why?
Penetrance120143880.030 Why?
Intestinal Absorption119944000.030 Why?
Hepatectomy119965590.030 Why?
Prevalence12009156860.030 Why?
Registries1200884580.030 Why?
Milk Hypersensitivity11993780.030 Why?
Epithelium1199616050.020 Why?
Pedigree2201445780.020 Why?
Amylases119911690.020 Why?
Hydrogen-Ion Concentration3199925020.020 Why?
Confidence Intervals1199729320.020 Why?
Enteral Nutrition119977850.020 Why?
Middle Aged520242203590.020 Why?
Asthma2200861720.020 Why?
Follow-Up Studies62017392620.020 Why?
Drug Therapy, Combination1200064980.020 Why?
Antipsychotic Agents1200330610.020 Why?
Histamine H2 Antagonists220081670.020 Why?
Antibodies, Monoclonal1200791850.020 Why?
Risk Factors52012743330.020 Why?
Intention120123450.020 Why?
Liver2200375100.020 Why?
Mutation22018299570.020 Why?
Protein Multimerization120149830.020 Why?
Lipase119913240.020 Why?
Severity of Illness Index32002158400.020 Why?
Vascular Endothelial Growth Factors220017480.020 Why?
Diet Surveys1201211610.020 Why?
CD4 Lymphocyte Count1201425690.020 Why?
Hypertension2198785950.020 Why?
Defecation120091900.020 Why?
Acquired Immunodeficiency Syndrome1199721970.020 Why?
Age Factors22018184130.020 Why?
Immunologic Memory1201413540.020 Why?
Breath Tests219882970.020 Why?
Heterozygote1201427980.020 Why?
Age of Onset1201433020.020 Why?
Surgical Wound Infection1199715270.020 Why?
gamma-Glutamyltransferase119871440.020 Why?
Carbohydrate Metabolism119882620.020 Why?
Blood Loss, Surgical119916560.020 Why?
Focus Groups1201213780.020 Why?
Food Hypersensitivity119956970.020 Why?
Pancreas1199416770.020 Why?
Carbohydrates219883880.020 Why?
Transaminases119871960.020 Why?
Metoclopramide11986510.020 Why?
Dose-Response Relationship, Drug32007108260.020 Why?
Seasons1201215220.020 Why?
Interleukin-61199632150.020 Why?
Cohort Studies32018413370.020 Why?
DNA Mutational Analysis1201441080.020 Why?
Incidence21997213910.020 Why?
Cholestasis, Extrahepatic11985510.020 Why?
Treatment Outcome62017649810.020 Why?
Immunoglobulin G3200445420.020 Why?
Ureteral Obstruction119872920.020 Why?
Sweden1200813810.020 Why?
Phenylpropanolamine11985150.020 Why?
Chromatography, Gas119851510.020 Why?
Mutation, Missense1201425670.020 Why?
HEK293 Cells1201442630.020 Why?
Medicaid1201828150.020 Why?
Interviews as Topic1201226590.020 Why?
Hemolytic-Uremic Syndrome119851060.020 Why?
Fasting1199116030.020 Why?
Antibodies, Fungal12004340.020 Why?
Depression1200480450.020 Why?
Peptide Fragments2198851320.010 Why?
Receptor, IGF Type 211984350.010 Why?
Porins12004790.010 Why?
Hydrogen119851710.010 Why?
Electrophoresis, Agar Gel119842170.010 Why?
Vitamin D Deficiency1199413790.010 Why?
Bile Ducts119852820.010 Why?
Agammaglobulinemia119851730.010 Why?
Health Knowledge, Attitudes, Practice1201939850.010 Why?
Parenteral Nutrition120086560.010 Why?
Pandemics1202486230.010 Why?
Twins119853390.010 Why?
Antibodies, Monoclonal, Murine-Derived120076930.010 Why?
Immunoglobulins120078590.010 Why?
Anti-Asthmatic Agents120085650.010 Why?
Twins, Monozygotic119854690.010 Why?
Naphthalenes119841980.010 Why?
Sequence Analysis, DNA1201447160.010 Why?
Proton Pump Inhibitors120085510.010 Why?
Medical Records1200814070.010 Why?
Proteins1199860290.010 Why?
Liver Transplantation1199523250.010 Why?
Motivation1201219930.010 Why?
Pheochromocytoma119853280.010 Why?
Antibodies, Antineutrophil Cytoplasmic120042880.010 Why?
Recurrence1199584830.010 Why?
Cricetulus119848150.010 Why?
Infusions, Intravenous1200722350.010 Why?
Oligosaccharides119844050.010 Why?
Chewing Gum11981400.010 Why?
Alkaline Phosphatase119848650.010 Why?
Hepatitis B Core Antigens11981880.010 Why?
Iodine Radioisotopes1198410320.010 Why?
Analysis of Variance2200262380.010 Why?
Cerebral Infarction119859820.010 Why?
Cricetinae1198424270.010 Why?
Internet1201230780.010 Why?
Aged, 80 and over22018589800.010 Why?
Phenotype12018165480.010 Why?
Diabetes Mellitus, Type 11201434540.010 Why?
Hepatitis B Surface Antigens119813010.010 Why?
Ovary119849580.010 Why?
Adrenal Gland Neoplasms119857330.010 Why?
Steroids120049280.010 Why?
Vascular Endothelial Growth Factor A2200134840.010 Why?
Histocompatibility Testing119817170.010 Why?
Adrenal Cortex Hormones1198818690.010 Why?
Recovery of Function1200929850.010 Why?
Rectum120048950.010 Why?
Drug Administration Schedule1200748990.010 Why?
CA-19-9 Antigen119991060.010 Why?
Drug Interactions1200314280.010 Why?
Cell Proliferation12014104420.010 Why?
Glycoconjugates11999880.010 Why?
Carbohydrate Sequence119994100.010 Why?
Osteomalacia11998560.010 Why?
Antibodies, Bacterial1200414680.010 Why?
Communication1201238490.010 Why?
Barium Sulfate219921800.010 Why?
Length of Stay1199164760.010 Why?
Benzodiazepines1200311310.010 Why?
Radioimmunoassay219898650.010 Why?
Quality of Life11999133080.010 Why?
Intestinal Fistula119971430.010 Why?
Probability1200224750.010 Why?
Models, Biological1201294680.010 Why?
Medical Audit119974530.010 Why?
Glycosylation1199910960.010 Why?
Infant Nutritional Physiological Phenomena119983510.010 Why?
Fibroblast Growth Factors120018690.010 Why?
Immunity, Mucosal119994810.010 Why?
Cholesterol1198429240.010 Why?
Skin1200844660.010 Why?
Regression Analysis1200463590.010 Why?
Cholesterol, LDL1198424200.010 Why?
Heart Arrest1198515060.010 Why?
Solubility1199610880.010 Why?
Neoplasms, Multiple Primary119985860.010 Why?
Longitudinal Studies22007144940.010 Why?
Eosinophils119999440.010 Why?
Sex Characteristics1200426290.010 Why?
Chronic Disease2198892880.010 Why?
Saccharomyces cerevisiae1200426980.010 Why?
B-Lymphocytes1200747420.010 Why?
Health Status Indicators119999680.010 Why?
Combined Modality Therapy2199685520.010 Why?
Databases, Factual1200880220.010 Why?
Lidocaine119965380.010 Why?
Aged220181691430.010 Why?
Escherichia coli1200442190.010 Why?
Cross-Sectional Studies22004259410.010 Why?
Time Factors21991401390.010 Why?
Monitoring, Physiologic1199917840.010 Why?
Atrophy1199616260.010 Why?
Carrier Proteins1198449380.010 Why?
Gastrointestinal Neoplasms119989510.010 Why?
Cell Line11984156200.010 Why?
Leptin1199815900.010 Why?
United States Food and Drug Administration1199816770.010 Why?
Dietary Proteins119959490.010 Why?
Antibodies, Viral1198131420.010 Why?
Pregnancy22008297460.010 Why?
Hydroxymethylglutaryl-CoA Reductase Inhibitors1198433320.010 Why?
Patient Satisfaction1200234480.010 Why?
Sorbitol11988560.000 Why?
Pilot Projects1200285560.000 Why?
Cells, Cultured11984189550.000 Why?
Substance-Related Disorders1198543710.000 Why?
Administration, Oral1199640350.000 Why?
Sucrose119881560.000 Why?
Neoplasms11997220750.000 Why?
Chemotherapy, Adjuvant1199635300.000 Why?
Logistic Models12002133120.000 Why?
Fructose119882870.000 Why?
Molecular Sequence Data11999176240.000 Why?
Health Policy1199826770.000 Why?
Reoviridae Infections11985590.000 Why?
Gastric Lavage11985170.000 Why?
Sodium Pertechnetate Tc 99m11985550.000 Why?
Technetium Tc 99m Sulfur Colloid11985630.000 Why?
Epilepsy, Tonic-Clonic11985530.000 Why?
Hemiplegia119851360.000 Why?
Peptic Ulcer Hemorrhage11985470.000 Why?
Enema119851410.000 Why?
Digestive System119852440.000 Why?
Hemostatic Techniques119851140.000 Why?
Case-Control Studies12001220520.000 Why?
Serologic Tests119853830.000 Why?
Serum Albumin119856740.000 Why?
Disease Progression11999135050.000 Why?
Radionuclide Imaging1198519750.000 Why?
Immunoglobulin M1198515290.000 Why?
Radiography1199269650.000 Why?
Body Mass Index11998129140.000 Why?
Angiography1198516050.000 Why?
Bacterial Infections1198514030.000 Why?
Glucose1198843500.000 Why?
Animals119841679600.000 Why?
Diagnosis, Differential11985129680.000 Why?
Magnetic Resonance Imaging11996362860.000 Why?
Tomography, X-Ray Computed11985205090.000 Why?
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Concepts (416)
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Funded by the NIH National Center for Advancing Translational Sciences through its Clinical and Translational Science Awards Program, grant number UL1TR002541.