AU - Hilmer SN, Mager DE, Simonsick EM, et al TI - A drug burden index to define the functional burden of medications in older people PT - JOUR DP - 2007 TA - Archives of Internal Medicine pages = {781-787}, VI - 167 IP - 8 AID - 10.1001/archinte.167.8.781 [doi] 4100 - http://dx.doi.org/10.1001/archinte.167.8.781 SO - Archives of Internal Medicine April 23, 2007 167(8):781