共 6 条
[1]
BROWNE GB, 1982, J FAM PRACTICE, V14, P63
[2]
Colling A, 1967, J R Coll Gen Pract, V14, P181
[4]
ELLIS CG, 1996, CAN FAM PHYSICIAN, V42, P641
[5]
Neal RD, 1998, BRIT J GEN PRACT, V48, P895