Silke, B., Verma, S. P., Nelson, G. I., Ahuja, R. C., Hussain, M., & Taylor, S. H. (1984). The effects on left ventricular performance of nifedipine and verapamil in exercise-induced angina pectoris.

Silke, B., S P. Verma, G I. Nelson, R C. Ahuja, M. Hussain, and S H. Taylor. The Effects On Left Ventricular Performance of Nifedipine and Verapamil in Exercise-induced Angina Pectoris. 1984.

Silke, B., et al. The Effects On Left Ventricular Performance of Nifedipine and Verapamil in Exercise-induced Angina Pectoris. 1984.