Man suffering from angina pectoris. This sketch shows a common cause of angina, a person expending energy in a cold environment. Source of figure is Netter FH, The Ciba Collection of Medical Illustrations, Vol. 5, Heart, CIBA, 1978, p. 223.

Permission: Netter illustrations used with permissoin from Icon Learning Systems, a division of MediMedia USA, Inc. All Rights reserved.