"Enzymatic Amplification of Beta-Globin Genomic Sequences and Restriction Site Analysis for Diagnosis of Sickle Cell Anemia" by Saiki, Scharf, Faloona, et. al.
"Single-sperm typing: Determination of genetic distance between the G _-globin and parathyroid hormone loci by using the polymerase chain reaction and allele-specific oligomers" by Cui, Li, Goradia, et. al.