TY  - RPRT
TI  - [ECG changes in persons representing present-day professions].
AU  - Kh Deianov
AU  - I Khadzhiolova
AU  - L Mincheva
AU  - G Kitipov
PY  - 1989
UR  - https://pubmed.ncbi.nlm.nih.gov/2635308/
ID  - 2635308
ER  -