| Literature DB >> 12305424 |
Abstract
Keywords: Americas; Biology; Delivery Of Health Care; Demographic Factors; Developed Countries; Health; Health Services; Infant Mortality; Lactation; Maternal Health Services; Maternal Physiology; Maternal-child Health Services; Mortality; New York; North America; Northern America; Physiology; Population; Population Dynamics; Primary Health Care; United States
Mesh：
Year: 1925 PMID： 12305424 DOI： 10.1001/jama.1925.02670090024006
Source DB: PubMed Journal: J Am Med Assoc ISSN： 0002-9955