共 50 条
- [33] ILLEGAL ABORTIONS IN UNITED-STATES - 1972-1974 FAMILY PLANNING PERSPECTIVES, 1976, 8 (02): : 86 - &
- [34] PRODUCTIVITY IN UNITED-STATES RAILROADS, 1951-1974 BELL JOURNAL OF ECONOMICS, 1980, 11 (01): : 166 - 181
- [35] NEED FOR FAMILY PLANNING SERVICES IN UNITED-STATES, 1974 FAMILY PLANNING PERSPECTIVES, 1974, 6 (01): : 27 - 38
- [37] LEPTOSPIROSIS IN HUMANS IN THE UNITED-STATES, 1974-1978 JOURNAL OF INFECTIOUS DISEASES, 1979, 140 (06): : 1020 - 1022
- [38] SHIGELLA INFECTIONS IN THE UNITED-STATES, 1974-1980 JOURNAL OF INFECTIOUS DISEASES, 1983, 147 (04): : 771 - 775
- [39] NOCARDIAL INFECTIONS IN UNITED-STATES, 1972-1974 JOURNAL OF INFECTIOUS DISEASES, 1976, 134 (03): : 286 - 289