1.
Probl Khig
; 17: 227-30, 1992.
Article
in Bulgarian
| MEDLINE
| ID: mdl-1364546
2.
Probl Khig
; 17: 230-3, 1992.
Article
in Bulgarian
| MEDLINE
| ID: mdl-1364548
3.
Probl Khig
; 15: 180-3, 1990.
Article
in Bulgarian
| MEDLINE
| ID: mdl-2099455
4.
Probl Khig
; 15: 183-4, 1990.
Article
in Bulgarian
| MEDLINE
| ID: mdl-2099456
Subject(s)
Absenteeism , Disability Evaluation , Social Medicine/legislation & jurisprudence , Bulgaria , Humans
5.
Probl Khig
; 10: 150-1, 1985.
Article
in Bulgarian
| MEDLINE
| ID: mdl-2940589