1.
Folia Med (Plovdiv)
; 20(4): 20-4, 1978.
Article
in English
| MEDLINE
| ID: mdl-109373
Subject(s)
Coronary Disease/epidemiology , Adult , Aged , Altitude , Bulgaria , Female , Humans , Male , Middle Aged , Rural Population
2.
Folia Med (Plovdiv)
; 20(3): 52-5, 1978.
Article
in English
| MEDLINE
| ID: mdl-115767