共 7 条
[1]
BLACK DAK, 1975, BRIT J PREV SOC MED, V29, P222
[2]
BRAY J, 1984, TIMES 0913, P15
[3]
1984, HDB 1984 1985 ASS ME
[4]
1984, COMPENDIUM HLTH STAT
[5]
1984, 1983 1984 MED RES CO, P88
[6]
1984, MRC NEWS MAR, P1
[7]
1983, ANN MED REPORT