共 16 条
[1]
CARTER H, INT POPULATION C
[2]
COLLINS SD, 1957, PUBLIC HEALTH REPORT, V72
[3]
COLLINS SD, 10 PUBL HEALTH MON
[4]
EICKHOFF C, 1961, J AMERICAN MEDICAL A, V176
[5]
FOOTE RJ, 48 AGR HANDB
[6]
KANELLAKIS AP, 1958, BRITISH J PREVENTIVE, V12
[7]
LINDER FE, VITAL STATISTICS RAT
[8]
SERFLING RE, 3 SESS STAT SECT ANN
[9]
SHISKIN J, 57 OCC PAP
[10]
SHISKIN J, 1955, AMERICAN STATISTICIA, V9