1. Reoperation of the Kay-Shiley Disc Valve 35 Years After Replacement
Shogo Nakayama, MD, PhD, Michihito Nonaka, MD, Osamu Ishida, MD 
The Annals of Thoracic Surgery 
Volume 79, Issue 4, Pages (April 2005)
DOI: /j.athoracsur

2. Fig 1 Right atrial angiogram shows the dilated right atrium.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

3. Fig 2
An excised Kay-Shiley disc valve; ventricular aspect. The disc and disc cage were covered with the overgrowth of the pannus formation.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )