共 4 条
[1]
Hollingshead A.D.B., 1958, SOCIAL CLASS MENTAL
[2]
KOCH H, 1974, OFFICE VISITS PEDIAT
[3]
USE OF A TEACHING PNEUMATIC OTOSCOPE
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1979, 242 (24)
:2664-2665
[4]
THOMPSON HC, 1980, DEMOGRAPHIC SOCIOECO