A REPORT ON THE ELECTROCARDIOGRAPHIC STUDY OF TWO CASES OF NODAL RHYTHM EXHIBITING R-P INTERVALS

JAMES D. HEARD, ARTHUR E. STRAUSS
1918 American Journal of the Medical Sciences  
doi:10.1097/00000441-191802000-00007 fatcat:lr3pvw2gbbgere6lhxf4kp2g6e