| Literature DB >> 4854309 |
Abstract
Keywords: Americas; Biology; Developed Countries; Economic Factors; Education; High Income Population; Lactation--statistics; Low Income Population; Maternal Physiology; North America; Northern America; Physiology; Population Characteristics; Religion; Research Methodology; Socioeconomic Factors; Socioeconomic Status; Statistical Studies; Studies; United States
Mesh:
Year: 1974 PMID: 4854309 DOI: 10.1080/19485565.1974.9988088
Source DB: PubMed Journal: Soc Biol ISSN: 0037-766X