共 12 条
[1]
Association British Medical, 1990, COD PRACT SAF US DIS
[2]
*CDC, 1995, MMWR-MORBID MORTAL W, V44, P50
[3]
Dusheiko GM, 1996, BMJ-BRIT MED J, V312, P357, DOI 10.1136/bmj.312.7027.357
[8]
*NHS MAN EX, 1993, HSG9340 DEP HLTH
[10]
Smith ER, 1996, ANN ROY COLL SURG, V78, P447