TY  - RPRT
TI  - [Exertion tests, heart rate and changes in maternal posture].
AU  - C Domínguez de Costa
AU  - P Eisenberg de Smoler
AU  - J Armas Domínguez
AU  - S Karchmer
PY  - 1977
UR  - https://pubmed.ncbi.nlm.nih.gov/401053/
ID  - 401053
ER  -