TY  - RPRT
TI  - The atriogram: a bedside method for recording high gain P waves.
AU  - N Cristal
AU  - L Freidberg
PY  - 1974
DO  - 10.1378/chest.65.5.554
UR  - https://pubmed.ncbi.nlm.nih.gov/4826030/
ID  - 4826030
ER  -