1. Electrocardiographic Poor R-Wave Progression
Michael J. Zema, M.D., F.C.C.P., Margaret Collins, M.D., Daniel R. Alonso, M.D., Paul Kligfield, M.D. 
CHEST 
Volume 79, Issue 2, Pages (February 1981)
DOI: /chest
Copyright © 1981 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Approach to patient with poor (PRWP) or reversed R-wave progression (RRWP). R1, R wave in lead 1; S1, S wave in lead 1; RV3, R wave in lead V3; RVH, right ventricular hypertrophy; AMI, anterior myocardial infarction; and LVH, left ventricular hypertrophy.
CHEST  , DOI: ( /chest )
Copyright © 1981 The American College of Chest Physicians Terms and Conditions