共 8 条
- [1] [Anonymous], STATISTICAL PACKAGE
- [2] BAJUK B, 1981, AUST PAEDIATR J, V17, P277
- [3] DAVIES PA, 1976, RECENT ADV PAEDIATRI, V5, P112
- [4] Dubowitz L, 1977, GESTATIONAL AGE NEWB
- [5] KITCHEN WH, 1981, AUST PAEDIATR J, V17, P269
- [6] SONAR MEASUREMENT OF FETAL CROWN-RUMP LENGTH AS MEANS OF ASSESSING MATURITY IN FIRST TRIMESTER OF PREGNANCY [J]. BMJ-BRITISH MEDICAL JOURNAL, 1973, 4 (5883): : 28 - 31
- [7] SINCLAIR JC, 1981, ENGL J MED, V30, P489
- [8] STEWART AL, 1981, LANCET, V1, P1038