TY - BOOK AU - Trude,Sally AU - Carter,Grace M AU - Douglass,Carolinda ED - Rand Corporation. ED - RAND/UCLA/Harvard Center for Health Care Financing Policy Research TI - Measuring physician practice patterns with Medicare data T2 - A Rand note ;vN-3609-HCFA PY - 1993/// CY - California, PB - Rand Corporation ER -