Patterns of multimorbidity in the aged population. Results from the KORA-Age study.
Kirchberger I, Meisinger C, Heier M, Zimmermann AK, Thorand B, Autenrieth CS, Peters A, Ladwig KH, Döring A. Patterns of multimorbidity in the aged population. Results from the KORA-Age study. PLoS One. 2012; 7(1):e30556.