Harvard Catalyst Profiles

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

Alan Michael Leichtner, M.D.

Concepts (412)

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?
Gastroenterology820205361.300 Why?
Celiac Disease1020227851.240 Why?
Fellowships and Scholarships7202410761.210 Why?
Pediatrics9202034750.880 Why?
Education, Medical, Graduate6202422910.830 Why?
Curriculum4202436050.800 Why?
Faculty120243860.740 Why?
Duodenum420194830.720 Why?
Torture12020530.720 Why?
Professional Competence220144470.710 Why?
Endoscopy, Digestive System220193450.560 Why?
Clinical Competence6202046870.520 Why?
Humanism12014890.440 Why?
Faculty, Medical2202211810.430 Why?
Diet, Gluten-Free420222710.420 Why?
Hospitals, Teaching1201611790.400 Why?
Mentors120166310.400 Why?
Crohn Disease15201423030.370 Why?
Education, Medical1202017210.310 Why?
Hospitals, Pediatric1201617750.300 Why?
Colitis, Ulcerative15200919120.300 Why?
Child542024777090.280 Why?
Tacrolimus320007430.280 Why?
Colonoscopy4202413670.210 Why?
Constipation220165460.190 Why?
Needs Assessment2201911470.180 Why?
Inflammatory Bowel Diseases8200424250.180 Why?
Reference Standards1202410250.180 Why?
Vitamin A Deficiency219981010.180 Why?
National Socialism12020530.180 Why?
Child, Preschool352022410060.180 Why?
Biopsy8201967560.170 Why?
Sex Education12019930.160 Why?
House Calls120201600.160 Why?
Lost to Follow-Up120181050.160 Why?
Vitamin E Deficiency11998320.160 Why?
Immunosuppressive Agents3200041490.150 Why?
Autoimmune Diseases5201421330.140 Why?
Intestinal Mucosa6201730360.140 Why?
Ileocecal Valve11995210.140 Why?
Aminosalicylic Acids11995370.140 Why?
Transglutaminases120171940.130 Why?
Gastroscopy119972070.130 Why?
Diseases in Twins219954490.130 Why?
Single-Blind Method1201915900.130 Why?
Colitis4199611700.130 Why?
Immunoglobulin A320179920.130 Why?
Humans8020247443430.130 Why?
Ethics, Medical120207920.120 Why?
Fibroblast Growth Factor 2119975990.120 Why?
Pancreatin1199490.120 Why?
Immunologic Deficiency Syndromes120185470.120 Why?
Gastrostomy119973090.120 Why?
Adolescent422019857810.120 Why?
Esophagus4199910190.110 Why?
Adenomatous Polyposis Coli220092240.110 Why?
Esophageal and Gastric Varices219952070.110 Why?
Internship and Residency3202057880.110 Why?
Proctocolectomy, Restorative220091890.110 Why?
Nutrition Disorders119942110.110 Why?
Esophagoscopy119953900.110 Why?
Lymphocytosis220081190.110 Why?
Esophagitis219991520.110 Why?
Gastrointestinal Hemorrhage4199811300.110 Why?
GTP-Binding Proteins120179700.110 Why?
Receptors, LDL219844750.100 Why?
Autoimmunity2202213490.100 Why?
Intestinal Obstruction119954240.100 Why?
Stomach119966970.100 Why?
Intraoperative Care119957670.100 Why?
Continuity of Patient Care1201810490.100 Why?
Colon6200817720.100 Why?
Lipoproteins, LDL219846400.100 Why?
Teaching1201911740.100 Why?
Infant252017351360.090 Why?
Education, Medical, Continuing120168400.090 Why?
Academic Medical Centers2202227590.090 Why?
Pancreaticoduodenectomy119945030.090 Why?
Female5020213801940.090 Why?
Enteritis220081650.090 Why?
Cystic Fibrosis1201911770.090 Why?
Food Services120121920.090 Why?
Male4320213501180.090 Why?
Antacids22008990.090 Why?
Endoscopy2201917850.090 Why?
Epidermolysis Bullosa, Junctional12008120.080 Why?
Endoscopy, Gastrointestinal119958680.080 Why?
Integrin beta412008310.080 Why?
Parturition120124410.080 Why?
Intestinal Diseases220085300.080 Why?
Digestive System Abnormalities12008520.080 Why?
Pylorus12008860.080 Why?
Lymphocytes1199626170.080 Why?
Colonic Pouches120091210.080 Why?
Anti-Ulcer Agents120081190.080 Why?
Chi-Square Distribution2200935080.080 Why?
Program Evaluation1201624880.080 Why?
Gastrointestinal Diseases4199811700.080 Why?
Boston2202193130.080 Why?
Hepatitis, Chronic11987520.080 Why?
Cyclosporins119872200.080 Why?
T-Lymphocytes, Cytotoxic1201418210.070 Why?
Checklist120148330.070 Why?
Universities120129560.070 Why?
Diarrhea4200813480.070 Why?
Chilblains12006140.070 Why?
Predictive Value of Tests32019150760.070 Why?
Prospective Studies92020532880.070 Why?
Hydronephrosis119872690.070 Why?
Pancreatitis2200310920.070 Why?
Referral and Consultation2201835280.070 Why?
Sensitivity and Specificity32019147220.070 Why?
Wound Healing1199727850.070 Why?
Health Personnel1201932180.060 Why?
Hexosephosphates11984260.060 Why?
Ulcer219972090.060 Why?
Mannosephosphates11984110.060 Why?
Esophageal Diseases219961660.060 Why?
Scoliosis119917250.060 Why?
Remission Induction3200023860.060 Why?
Lovastatin119841200.060 Why?
Adult2020182140550.060 Why?
Statistics, Nonparametric1200928860.060 Why?
Fruit2198811420.060 Why?
Procollagen319891850.060 Why?
Pirenzepine120031150.060 Why?
L-Lactate Dehydrogenase120034240.050 Why?
Patient Compliance1201226840.050 Why?
Aspartate Aminotransferases120034180.050 Why?
Societies, Medical2201337430.050 Why?
United States52020698720.050 Why?
Alanine Transaminase120035920.050 Why?
Data Collection1201033410.050 Why?
Valproic Acid120034450.050 Why?
Haploinsufficiency120223280.050 Why?
Hepatocyte Growth Factor120012700.050 Why?
Blood Sedimentation219982310.050 Why?
Endothelial Growth Factors220016940.050 Why?
Quality Improvement1201537490.040 Why?
Attitude of Health Personnel1201438430.040 Why?
Antimanic Agents120035220.040 Why?
Lymphokines220019490.040 Why?
Azathioprine120003530.040 Why?
Pharmaceutical Solutions11998150.040 Why?
Glutens120212300.040 Why?
Interdisciplinary Studies12019890.040 Why?
Competency-Based Education120202110.040 Why?
Primary Health Care1201545580.040 Why?
Carcinoma, Hepatocellular2199622140.040 Why?
Gangliosides119991370.040 Why?
Reoperation3199742010.040 Why?
Aluminum119981520.040 Why?
Malabsorption Syndromes319881350.040 Why?
Complementary Therapies120024860.040 Why?
Immunologic Factors1200715800.040 Why?
Sigmoidoscopy219961560.040 Why?
Parenteral Nutrition, Total119983020.040 Why?
Proctitis11997400.040 Why?
Hepatitis B virus119815130.040 Why?
Growth319893760.040 Why?
Drug Contamination119981470.040 Why?
Accreditation120204500.040 Why?
Gastroscopes11997190.040 Why?
Duodenoscopy12017520.040 Why?
Enzyme-Linked Immunosorbent Assay3200138700.040 Why?
Retrospective Studies122021774490.040 Why?
Games, Experimental12016320.040 Why?
Prenatal Exposure Delayed Effects1200824080.030 Why?
Hypersensitivity2200811020.030 Why?
Physicians1201445670.030 Why?
Hepatitis B119816950.030 Why?
Intestines2200819240.030 Why?
Ileal Diseases11995740.030 Why?
Infant, Newborn82017256250.030 Why?
Young Adult62019564300.030 Why?
Schools, Medical120228800.030 Why?
Liver Neoplasms2199642530.030 Why?
Arteriovenous Malformations119983960.030 Why?
Medical History Taking120197830.030 Why?
Stomach Diseases119961340.030 Why?
Cellulitis119972060.030 Why?
Receptors, Interleukin-2119965730.030 Why?
Liver Function Tests119965280.030 Why?
Liver Regeneration119962100.030 Why?
Xylose11994280.030 Why?
Vitamin A119986150.030 Why?
4-Aminobenzoic Acid11994220.030 Why?
Hydroxycholecalciferols11994440.030 Why?
Siblings120188540.030 Why?
Equipment Failure119975780.030 Why?
Catheters, Indwelling119974260.030 Why?
Postoperative Complications31997152950.030 Why?
Ligation119954530.030 Why?
Gastric Emptying219942330.030 Why?
Sclerotherapy119951750.030 Why?
Gastroesophageal Reflux319997820.030 Why?
Odds Ratio3200898490.030 Why?
Vitamin E119988690.030 Why?
Eosinophilia219995410.030 Why?
Laparotomy119954730.030 Why?
Hemangioma119987380.030 Why?
Registries1200880890.030 Why?
Dimerization120148930.030 Why?
Chloroquine219842800.030 Why?
Penetrance120143810.030 Why?
Growth Disorders219976450.030 Why?
Hepatectomy119965500.030 Why?
Intestinal Absorption119944200.030 Why?
Prevalence12009152260.030 Why?
Milk Hypersensitivity11993760.030 Why?
Pedigree2201446440.020 Why?
Amylases119911730.020 Why?
Epithelium1199616790.020 Why?
Hydrogen-Ion Concentration3199925570.020 Why?
Enteral Nutrition119977630.020 Why?
Confidence Intervals1199729710.020 Why?
Asthma2200860110.020 Why?
Follow-Up Studies62017390500.020 Why?
Drug Therapy, Combination1200064890.020 Why?
Histamine H2 Antagonists220081650.020 Why?
Risk Factors52012722900.020 Why?
Antipsychotic Agents1200330570.020 Why?
Intention120123410.020 Why?
Antibodies, Monoclonal1200792740.020 Why?
Liver2200374740.020 Why?
Mutation22018297860.020 Why?
Protein Multimerization120149700.020 Why?
Lipase119913140.020 Why?
Severity of Illness Index32002155400.020 Why?
Vascular Endothelial Growth Factors220017720.020 Why?
Diet Surveys1201211730.020 Why?
CD4 Lymphocyte Count1201425590.020 Why?
Hypertension2198784800.020 Why?
Defecation120091880.020 Why?
Breath Tests219882800.020 Why?
Focus Groups1201213210.020 Why?
Heterozygote1201428040.020 Why?
Acquired Immunodeficiency Syndrome1199722320.020 Why?
Age Factors22018183700.020 Why?
Immunologic Memory1201413480.020 Why?
Age of Onset1201432710.020 Why?
Food Hypersensitivity119956220.020 Why?
gamma-Glutamyltransferase119871340.020 Why?
Middle Aged420182133830.020 Why?
Blood Loss, Surgical119916620.020 Why?
Surgical Wound Infection1199715400.020 Why?
Carbohydrate Metabolism119882640.020 Why?
Pancreas1199416860.020 Why?
Metoclopramide11986510.020 Why?
Carbohydrates219883940.020 Why?
Transaminases119871990.020 Why?
Seasons1201214930.020 Why?
Dose-Response Relationship, Drug32007109430.020 Why?
Interleukin-61199632000.020 Why?
Cohort Studies32018405610.020 Why?
Treatment Outcome62017631140.020 Why?
Incidence21997209470.020 Why?
Cholestasis, Extrahepatic11985510.020 Why?
DNA Mutational Analysis1201441860.020 Why?
Immunoglobulin G3200445600.020 Why?
Sweden1200813450.020 Why?
Interviews as Topic1201225390.020 Why?
Ureteral Obstruction119872960.020 Why?
Phenylpropanolamine11985150.020 Why?
Medicaid1201827360.020 Why?
Chromatography, Gas119851560.020 Why?
HEK293 Cells1201442040.020 Why?
Mutation, Missense1201425640.020 Why?
Fasting1199115930.020 Why?
Hemolytic-Uremic Syndrome119851100.020 Why?
Antibodies, Fungal12004320.020 Why?
Depression1200477660.020 Why?
Receptor, IGF Type 211984350.020 Why?
Hydrogen119851640.020 Why?
Peptide Fragments2198850970.020 Why?
Porins12004810.020 Why?
Electrophoresis, Agar Gel119842120.020 Why?
Agammaglobulinemia119851670.020 Why?
Vitamin D Deficiency1199413430.020 Why?
Health Knowledge, Attitudes, Practice1201939230.010 Why?
Bile Ducts119852840.010 Why?
Anti-Asthmatic Agents120085360.010 Why?
Parenteral Nutrition120086500.010 Why?
Twins119853390.010 Why?
Antibodies, Monoclonal, Murine-Derived120076930.010 Why?
Twins, Monozygotic119854580.010 Why?
Naphthalenes119841940.010 Why?
Liver Transplantation1199521190.010 Why?
Proton Pump Inhibitors120085260.010 Why?
Immunoglobulins120078810.010 Why?
Sequence Analysis, DNA1201448030.010 Why?
Medical Records1200814130.010 Why?
Recurrence1199583400.010 Why?
Proteins1199861030.010 Why?
Motivation1201219710.010 Why?
Pheochromocytoma119853370.010 Why?
Antibodies, Antineutrophil Cytoplasmic120042880.010 Why?
Cricetulus119848160.010 Why?
Oligosaccharides119844140.010 Why?
Infusions, Intravenous1200722740.010 Why?
Chewing Gum11981410.010 Why?
Hepatitis B Core Antigens11981920.010 Why?
Alkaline Phosphatase119848650.010 Why?
Iodine Radioisotopes1198410320.010 Why?
Aged, 80 and over22018577760.010 Why?
Phenotype12018163650.010 Why?
Analysis of Variance2200263650.010 Why?
Cricetinae1198424720.010 Why?
Cerebral Infarction1198510110.010 Why?
Internet1201230640.010 Why?
Diabetes Mellitus, Type 11201433360.010 Why?
Hepatitis B Surface Antigens119813050.010 Why?
Ovary119849810.010 Why?
Adrenal Gland Neoplasms119857400.010 Why?
Steroids120049300.010 Why?
Adrenal Cortex Hormones1198818550.010 Why?
Vascular Endothelial Growth Factor A2200135080.010 Why?
Histocompatibility Testing119817410.010 Why?
Recovery of Function1200929250.010 Why?
Rectum120049040.010 Why?
Drug Administration Schedule1200749330.010 Why?
CA-19-9 Antigen119991110.010 Why?
Drug Interactions1200314600.010 Why?
Cell Proliferation12014104810.010 Why?
Osteomalacia11998530.010 Why?
Glycoconjugates11999870.010 Why?
Carbohydrate Sequence119994140.010 Why?
Communication1201237490.010 Why?
Antibodies, Bacterial1200414700.010 Why?
Barium Sulfate219921800.010 Why?
Length of Stay1199163090.010 Why?
Benzodiazepines1200311010.010 Why?
Quality of Life11999128040.010 Why?
Radioimmunoassay219899190.010 Why?
Intestinal Fistula119971400.010 Why?
Probability1200225050.010 Why?
Models, Biological1201295830.010 Why?
Medical Audit119974670.010 Why?
Infant Nutritional Physiological Phenomena119983470.010 Why?
Glycosylation1199911260.010 Why?
Fibroblast Growth Factors120018790.010 Why?
Immunity, Mucosal119994900.010 Why?
Cholesterol1198429170.010 Why?
Skin1200843640.010 Why?
Cholesterol, LDL1198423560.010 Why?
Heart Arrest1198514700.010 Why?
Solubility1199610850.010 Why?
Regression Analysis1200464590.010 Why?
Longitudinal Studies22007139890.010 Why?
Neoplasms, Multiple Primary119986040.010 Why?
Eosinophils119999550.010 Why?
Sex Characteristics1200425850.010 Why?
Chronic Disease2198891460.010 Why?
B-Lymphocytes1200746650.010 Why?
Saccharomyces cerevisiae1200427520.010 Why?
Databases, Factual1200877290.010 Why?
Health Status Indicators119999690.010 Why?
Aged220181632800.010 Why?
Lidocaine119965440.010 Why?
Combined Modality Therapy2199686420.010 Why?
Escherichia coli1200442170.010 Why?
Cross-Sectional Studies22004250430.010 Why?
Time Factors21991400750.010 Why?
Atrophy1199615830.010 Why?
Monitoring, Physiologic1199917380.010 Why?
Carrier Proteins1198450210.010 Why?
United States Food and Drug Administration1199815840.010 Why?
Gastrointestinal Neoplasms119989900.010 Why?
Cell Line11984159970.010 Why?
Leptin1199815990.010 Why?
Antibodies, Viral1198131760.010 Why?
Dietary Proteins119959630.010 Why?
Pregnancy22008291440.010 Why?
Hydroxymethylglutaryl-CoA Reductase Inhibitors1198432550.010 Why?
Patient Satisfaction1200233960.010 Why?
Pilot Projects1200283240.010 Why?
Sorbitol11988590.010 Why?
Substance-Related Disorders1198542580.010 Why?
Administration, Oral1199639130.010 Why?
Cells, Cultured11984192290.000 Why?
Sucrose119881640.000 Why?
Neoplasms11997216830.000 Why?
Chemotherapy, Adjuvant1199634790.000 Why?
Logistic Models12002134080.000 Why?
Fructose119882880.000 Why?
Health Policy1199826610.000 Why?
Reoviridae Infections11985600.000 Why?
Molecular Sequence Data11999181110.000 Why?
Gastric Lavage11985180.000 Why?
Sodium Pertechnetate Tc 99m11985570.000 Why?
Technetium Tc 99m Sulfur Colloid11985660.000 Why?
Epilepsy, Tonic-Clonic11985490.000 Why?
Hemiplegia119851350.000 Why?
Peptic Ulcer Hemorrhage11985490.000 Why?
Enema119851410.000 Why?
Hemostatic Techniques119851160.000 Why?
Digestive System119852530.000 Why?
Case-Control Studies12001217460.000 Why?
Serologic Tests119853740.000 Why?
Serum Albumin119856760.000 Why?
Disease Progression11999132840.000 Why?
Immunoglobulin M1198515370.000 Why?
Radiography1199270230.000 Why?
Radionuclide Imaging1198520310.000 Why?
Body Mass Index11998127200.000 Why?
Angiography1198516390.000 Why?
Bacterial Infections1198514010.000 Why?
Glucose1198843970.000 Why?
Animals119841687570.000 Why?
Diagnosis, Differential11985129590.000 Why?
Magnetic Resonance Imaging11996354210.000 Why?
Tomography, X-Ray Computed11985201290.000 Why?
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Concepts (412)
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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.