RT Journal Article SR Electronic T1 Correlation of estrogen excretion with intrauterine transfusion JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 600 OP 601 VO 103 IS 6 A1 MacLeod, S. C. A1 Parker, A. S. A1 Morgan, D. A. YR 1970 UL http://www.cmaj.ca/content/103/6/600.abstract