1971 Press Photo Doctors John Knowles and Sparks at Tulane University in LA.

Dr. John H. Knowles (left), general director of Massachusetts General Hospital in Boston, is welcomed Tuesday by Dr. Robert D. Sparks, dean of the Tulane University School of Medicine,shortly before Knowles delivered the Leo S. Weil Lecture at Tulane Medical Center.

Photo is dated 1971.

Photo measures 8 x 10 inches.