A Study of Infant Mortality from Linked Records: Methods of Study and Registration Aspects,United States, 1960 live birth cohort
O20528
44 p. - (Vital and Health Statistics.Series 20: Data from the National Vital Statistics System, no. 7 ) US
O20528
44 p. - (Vital and Health Statistics.Series 20: Data from the National Vital Statistics System, no. 7 ) US