Department of Biomedical Sciences;
Faculty of Sciences;
University of Ngaoundéré;
Ngaoundéré;
Cameroon;
Imaging service;
Ngaoundéré Regional Hospital;
Ngaoundéré;
Cameroon;
Faculty of Medicine and Biomedical Sciences;
University of Ngaoundere;
Garoua;
Cameroon;
Faculty of Medicine and Biomedical Sciences;
University of Yaounde I;
Yaounde;
Cameroon;
Yaounde Gynaecology Obstetrics and Pediatrics Hospital;
Yaounde;
Cameroon;
Chest; X-Ray; Workers; Periodic; Medical; Check-Ups; Diagnostic; Value; Cost;