共 27 条
- [21] SORENSEN AA, 1978, CLIN RES, V26, P1
- [22] SORENSEN AA, 1977, 8TH INT SCI M, P343
- [24] ALLOCATION OF SUBJECTS IN MEDICAL EXPERIMENTS [J]. NEW ENGLAND JOURNAL OF MEDICINE, 1974, 291 (24) : 1278 - 1287
- [25] NEW DESIGN FOR RANDOMIZED CLINICAL-TRIALS [J]. NEW ENGLAND JOURNAL OF MEDICINE, 1979, 300 (22) : 1242 - 1245
- [26] 1980, DIRECTORY MED SPECIA
- [27] 1976, US PHYSICIAN REFEREN