TY - GEN ED - N.C.P.H.V. TI - PROSTHETIC HEART VALVES U1 - 617.9512 PY - 1969/// CY - Springfield, Ill. PB - C. C. Thomas KW - Heart Valve Prosthesis -- Congresses N1 - Includes Bibliographies; Sponsored By The Society Of Thoracic Surgeons ER -