1.
N Engl J Med
; 331(21): 1446-7, 1994 Nov 24.
Article
in English
| MEDLINE
| ID: mdl-7969284
2.
JAMA
; 262(16): 2237-8, 1989 Oct 27.
Article
in English
| MEDLINE
| ID: mdl-2795803
3.
S D J Med
; 40(12): 17-21, 1987 Dec.
Article
in English
| MEDLINE
| ID: mdl-3328289