TY  - RPRT
TI  - [Atrioventricular conduction time and physical exercise in children].
AU  - H Hejnowicz-Gmerek
AU  - J Sczerbowska-Ociepko
AU  - H Pikulska
PY  - 1977
UR  - https://pubmed.ncbi.nlm.nih.gov/887321/
ID  - 887321
ER  -