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The publication date of the book "Cardiac Catheterization in Congenital Heart Disease: A Clinical and Physiological Study in Infants and Children," by André Cournand, M.D.; Janet S. Baldwin, M.D., and Aaron Himmelstein, M.D., was March 21, 1949, not 1944, as was stated in the May issue of this periodical, page 969.
CORRECTION. Am J Dis Child. 1950;79(6):1077. doi:10.1001/archpedi.1950.04040011096014