Bibliographical noteFunding Information:
It‘rom the Ce;artments oi Fediatrics, Radiology, Medicine and I‘athclogr. l’r,i\ersity ni Ilinnes,x;a, Minnesota and the Department of Pathology, The Charles T. Miller Hospital. St. Paul, M~nnesrz;:!, This investigation was supported by Public Health Serrke Research Grznt 5 R01 HK356il4 and Kweaich Ir;Sng Grant 5 Tt HE 55X. from tlie Iiatkmal I!ecirt Iostitute. Received Car publication March 29, 196i. .2ddrcss: Department of Pathology, The Charles T. Miller Hospital, 125 West College Avenue. 51,. !‘a,~~. hlinnrsota 55102.