共 50 条
- [3] MATERNAL AGE PATTERNS AND THE INCIDENCE OF DOWNS-SYNDROME [J]. AMERICAN JOURNAL OF MENTAL DEFICIENCY, 1979, 83 (04): : 353 - 359
- [4] DOWNS-SYNDROME - SHIFTING PATTERNS IN MATERNAL AGE [J]. PEDIATRIC RESEARCH, 1977, 11 (04) : 436 - 436
- [5] EFFECT OF MATERNAL AGE ON INCIDENCE OF DOWNS-SYNDROME [J]. HUMANGENETIK, 1972, 16 (1-2): : 141 - +
- [6] RIBOSOMAL-RNA, MATERNAL AGE, AND DOWNS-SYNDROME [J]. ACTA GENETICAE MEDICAE ET GEMELLOLOGIAE, 1975, 24 (3-4): : 245 - 250
- [8] SOCIOECONOMIC CHANGES, MATERNAL AGE, AND DOWNS-SYNDROME IN A SWEDISH POPULATION [J]. SOCIAL BIOLOGY, 1976, 23 (01): : 86 - 89