NBEAL2 and gray platelet syndrome: The few examples are patients with Glanzmann’s thrombasthenia (lacking integrin αIIbβ3, mutated ITGA2B), Scott syndrome (mutated phospholipid scramblase ANO6), X-linked thrombocytopenia (GATA1 mutation), pseudohypoparathyroidism type Ia (PHP Ia, mutated GNAS locus) and Gray platelet syndrome (mutated NBEAL2, α-granule deficiency).