共 19 条
[1]
*BLUE CROSS ASS, 1970, 1970 ENR UT REP
[2]
GUTTMACHER AF, 1969, BIRTH CONTROL LOVE, P209
[3]
*HEALTH INS ASS AM, 1968, COMPARISON GROUP MED
[4]
*HEALTH INS ASS AM, 1966, PROFILE GROUP HLTH, P25
[5]
*HEALTH INS I, 1969 NEW GROUP HLTH, P37
[6]
MCKENZIE V, 1970, PERSONAL COMMUNICATI
[7]
MULLER CF, 1969, DEC NAT I CHILD HLTH
[8]
PAPPERMAN S, 1970, PRIVATE COMMUNICATIO
[9]
REED LS, 1970, 30 SOC SEC ADM OFF R, P13
[10]
ROSOFF JI, 1969, FAMILY PLANNING MEDI