共 12 条
[1]
AVED BM, UNPUB COMP ANAL 2 MA
[2]
BICE TW, 1975, MED CARE, V13, P698, DOI 10.1097/00005650-197508000-00011
[4]
FINK R, 1984, B NY ACAD MED, V60, P45
[6]
*HLTH MAINT ORG, 1982, ENR US MIDY CENS
[9]
RIEDEL DC, 1975, FEDERAL EMPLOYEES HL
[10]
SHAPIRO S, 1971, B NY ACAD MED, V74, P374