共 50 条
- [21] MYELOMENINGOCELE AND SOCIAL-CLASS DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY, 1980, 22 (02): : 244 - 244
- [22] THE ASSOCIATION OF MATERNAL AGE, SOCIAL-CLASS AND SMOKING WITH BIRTH-WEIGHT REVISTA DE SAUDE PUBLICA, 1992, 26 (03): : 150 - 154