 Evidence for multiple structural genes for the gamma chain of human fetal hemoglobin by W. A. Schroeder and others

Proceedings of the National Academy of Sciences 60(2), 537–544 (June 1968), DOI 10.1073/pnas.60.2.537, PMCID PMC225081. Primary first byline W. A. Schroeder. Author-institution indexed full text: authors.library.caltech.edu/10565/ . Page 537, opening paragraph: examination of fetal hemoglobin components in 17 additional infants found alanine as well as glycine at gamma-chain position 136. The indexed original page was inspected; the direct institutional reader returned a cache miss. No full first name or individual coauthor role inferred.