Complex sentence: Heparin-induced thrombocytopenia (HIT) is a classic example, in which the heparin-antibody-platelet factor 4 (PF4) complex binds to the Fc receptors on the surface of the platelet.
Split into simpler sentences: Heparin-induced thrombocytopenia (HIT) is a classic example of this phenomenon. In HIT, the heparin-antibody-platelet factor 4 (PF4) complex binds to Fc receptors on the surface of the platelet.