共 19 条
[14]
OKAFOR BC, 1976, NIGERIAN MED J, V6, P470
[15]
RICKHAM P P, 1971, Annals of the Royal College of Surgeons of England, V48, P25
[16]
SAWNEY KL, 1973, INDIAN J OTOLARYNGOL, V25, P47
[19]
WRIGHT FW, 1974, BRIT J CLIN PRACT, V28, P413