1.
Rev Sanid Hig Publica (Madr)
; 57(3-4): 329-41, 1983.
Article
in Spanish
| MEDLINE
| ID: mdl-6669908
2.
Rev Sanid Hig Publica (Madr)
; 55(7-8): 775-94, 1981.
Article
in Spanish
| MEDLINE
| ID: mdl-7348417