Three New Hemoglobin Variants with Abnormal Oxygen Affinity: Hb Saratoga Springs [α40(C5)Lys→Asn (α1)], Hb Santa Clara [β97(FG4)His→Asn], and Hb Sparta [β103(G5)Phe→Val]

We report preliminary data for three previously unrecognized, high oxygen affinity hemoglobin (Hb) variants that were initially ascertained because of erythrocytosis in the index cases, or by chrom...