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November 29, 1958


JAMA. 1958;168(13):1784-1785. doi:10.1001/jama.1958.03000130050012

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ELSEWHERE in this issue (page 1735), in an article written with Drs. Wynn A. Sayman, Ross L. Gauld, and Shirley A. Star, Dr. J. Garrott Allen summarizes his long and careful study of the incidence of hepatitis in the recipients of blood and plasma at the University of Chicago. Both the plasma and whole blood used in this study were to a large extent obtained from the same donor population, and all plasma was pooled and stored for six months at an average temperature of 32 C. No other treatment of the plasma was carried out. Six-month follow-up studies on the occurrence of hepatitis were completed on sufficiently large groups of patients receiving whole blood, blood and plasma, and plasma only to yield conclusions which are considered to be statistically significant. A total of 305 individuals received pooled liquid plasma only. The total number of donors represented in the plasma

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