1. Harken, Dwight E. Foreign bodies in and in relation to great vessels and heart. I. General comments and a consideration of techniques for approaching and removing foreign bodies from the chambers of the heart. Surg., Gynec., & Obst. (in press).
2. Harken, Dwight E. and Zoll, Paul M. Foreign bodies in and in relation to great vessels and heart. III. Indications for the removal of intracardiac foreign bodies and the behaviour of the heart during manipulation. Am. Heart J. (in press).