1. Calcium currents and arrhythmias: insights from molecular biology
Stephen R Shorofsky, MD, PhD, C.William Balke, MD 
The American Journal of Medicine 
Volume 110, Issue 2, Pages (February 2001)
DOI: /S (00)

2. Figure 1
Schematic model of the transmembrane topology of the α1 subunit of the L-type Ca channel. The P loops in each repeat are indicated by the thick lines. [Reproduced with permission from W.B. Saunders Company, Cardiac Electrophysiology, 3rd ed. (147).]
The American Journal of Medicine  , DOI: ( /S (00) )

3. Figure 2
Schematic representation of the regulatory subunits and their putative relationship to the α1 subunit of the L-type Ca channel. [Reproduced with permission from W.B. Saunders Company, Cardiac Electrophysiology, 3rd ed. (147).]
The American Journal of Medicine  , DOI: ( /S (00) )