Focused Cardiac Ultrasound for the Nephrologist: The apical window - Renal Fellow Network
Echocardiography – CL Laboratory LLC
The four‐chamber view: four reasons why it seems to fail in screening for cardiac abnormalities and suggestions to improve detection rate - Chaoui - 2003 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library
8A. Apical four chamber view (normal) - YouTube
Figure, Apical Four chamber view on Transthoracic echocardiography. Contributed by Ghufran Adnan] - StatPearls - NCBI Bookshelf