ITGB3 and infective endocarditis: The distribution of GPIIIa PlA1/A2 and FcγRIIa H131R platelet receptor genotype did not vary between patients with infective endocarditis and healthy volunteers (P = 0.675 and P = 0.774 respectively; Table 2), and were consistent with findings from previous studies of platelet receptor polymorphisms [13,19,28].