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1对象及方法1.1对象1996年作者在新乡市第一人民医院和第二人民医院妇产科调查,测量了出生24小时内正常足月新生儿121例(男婴57,女婴4),所有调查对象均为单胎、活产、无先天畸形。父母身体健康,汉族,孕妇年龄23~35岁。1.2方法测量方法和测点依
1 Subjects and methods 1.1 Object In 1996 the author of the First People’s Hospital of Xinxiang City and the Second People’s Hospital Obstetrics and Gynecology survey, measuring birth within 24 hours of normal full-term newborns in 121 cases (57 boys and 4 girls) All subjects were single-fetus, live births, no congenital malformations. Parents healthy, Han nationality, pregnant women aged 23 to 35 years old. 1.2 Methods Measurement methods and measuring points according to