暂无摘要
A retrospective study of breastfeeding patterns in a socioeconomically homogeneous sample of 2520 mothers visiting Mexican outpatient clinics was conducted. During May and June 1975, mothers attending the outpatient departments of 4 clinics of the Mexican Social Security Institute (IMSS) were interviewed. The mothers ranged in age from 15 to 48 years. In 56.1% of the cases, the child's father was a laborer
those who had fed their infants from the breast for 1-3 months, and those who had continued to do so for 4 months or more. In 1061 cases (42.7% of the total), the mothers cited a lack or insufficiency of milk
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