Pediatrics General bb1feff8 In Glanzman's thrombasthenia, there is a defect of A Gp IIb / IIa B Gp IIb / IIIa C Gp Ib / IX D Gp IIb / IX High-Yield Explanation Glanzman's thrombasthenia Platelet aggregation defect IIb / IIIa Gp deficient