共 20 条
[4]
COHN AE, 1950, BURDEN DISEASE US
[5]
Farr W., 1839, ANN REPORT REGISTRAR
[6]
FRANKEL E, 1951, STATE NEW JERSEY RES, V102
[7]
GREENWOOD M, 1949, MED STATISTICS GRAUN
[8]
Malzberg B, 1939, MENT HYG, V23, P641
[9]
NORRIS V, 1951, BRIT MED J, V1, P129
[10]
Penrose LS, 1943, J MENT SCI, V89, P374