22 years (1954--1975) investigation of infant deaths in textile workers' families.
D002681:China; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D007234:Infant, Premature; D009790:Occupations; D012131:Respiratory Insufficiency / Q000401:mortality; D013784:Textiles; D013997:Time Factors