HPA-1a phenotype-genotype discrepancy reveals a naturally occurring Arg93Gln substitution in the platelet beta 3 integrin that disrupts the HPA-1a epitope. - Watkins, N; Schaffner-Reckinger, E; Allen, D; Howkins, G; Brons, N; Smith, G; Metcalfe, P; Murphy, M; Kieffer, N; Ouwehand, W (Blood, 2002)