Hepatitis non-ABC. Is there yet another post transfusion hepatitis (PTH)?: S.V. Feinman1, M. Blajchman2, S. Bull1, J. Dienstag3, E. J. Heathcote4, G. Minuk5, E. Schroeder5, 1The Liver Study and Lunenfeld Res. Inst., Mount Sinai Hospital, Univ. of Toronto.2 Dept. of Pathology, McMaster Univ, Hamilton, Ont; 3Mass. Gen. Hospital - Boston, Mass, U.S.A., 4Toronto Hospital - Toronto, Ont., 5Health Science Centre - Winnipeg, Man., Canada