In December 1964, he was operated on by Michael E. DeBakey in Houston for an aneurysm of the abdominal aorta, and in February 1965 a detached retina in his left eye was treated by Sir Stewart Duke-Elder.
În decembrie 1964, a fost operat de Michael DeBakey la Houston de anevrism al aortei abdominale iar în februarie 1965 o detașare a retinei ochiului stâng a fost tratată de Sir Stewart Duke-Elder.