| Literature DB >> 12255260 |
Abstract
Keywords: Age Factors; Biology; Clinical Research; Demographic Factors; Fertility; Fertility Measurements; Lactation; Maternal Physiology; Menstruation; Parity; Physiology; Population; Population Characteristics; Population Dynamics; Puerperium; Reproduction; Research Methodology
Mesh：
Year: 1951 PMID： 12255260
Source DB: PubMed Journal: J Obstet Gynaecol Br Emp ISSN： 0307-1871