TY  - RPRT
TI  - Left ventricular function in marathon runners: echocardiographic assessment.
AU  - W Paulsen
AU  - D R Boughner
AU  - P Ko
AU  - D A Cunningham
AU  - J A Persaud
PY  - 1981
DO  - 10.1152/jappl.1981.51.4.881
UR  - https://pubmed.ncbi.nlm.nih.gov/7298433/
ID  - 7298433
ER  -