TY - BOOK AU - Babskiy,Ye B,Karpman,V L AU - Ivanitskaya,I N TI - NORMAL DURATION OF THE ELECTRIC SYSTOLE IN MAN U1 - NASA PY - 1965/// CY - PB - Nasa, Washington, D.C. N1 - Bound With Nasa Tt F-261-63, 265-69 Lack No. 267-68 ER -