Text ( visual ) : unmediated Cardiac valve allografts : science and practice / editors, A. C. Yankah, M. H. Yacoub, R. Hetzer. -- Darmstadt : Steinkopff ; Springer , 1997. -- XI, 385 p. : ill. ; 25 cm. -- Foreword by D. N. Ross. -- ISBN 3798510644 ; (BA35393388) ; https://ci.nii.ac.jp/ncid/BA35393388 Author Heading(s): Yankah, A. C. (A. Charles) ; Yacoub, Magdi ; Hetzer, R. (Roland)