TY - RPRT TI - Hemoglobin S Travis: a sickling hemoglobin with two amino acid substitutions [beta6(A3)glutamic acid leads to valine and beta142 (h20) alanine leads to valine). AU - W F Moo-Penn AU - R M Schmidt AU - D L Jue AU - K C Bechtel AU - J M Wright AU - M K Horne AU - G L Haycraft AU - E F Roth AU - R L Nagel PY - 1977 DO - 10.1111/j.1432-1033.1977.tb11699.x UR - https://pubmed.ncbi.nlm.nih.gov/19257/ ID - 19257 ER -