共 7 条
[1]
BROCK C, 1977, J FAM PRACTICE, V4, P1129
[2]
FEINSTEIN AR, 1977, CLIN BIOSTATISTICS, pCH28
[5]
RUDD P, 1978, J MED EDUC, V53, P590
[6]
SAUNDERS TC, 1978, J FAM PRACTICE, V6, P123