Fig. 5From: Direct activation of platelets by addition of CaCl2 leads coagulation of platelet-rich plasmaEffects of CaCl2 on fibrin clot formation on watch glasses and polystyrene culture dishes. a PRP mixed with 0.1% CaCl2 on a watch glass. b PRP mixed with 0.1% CaCl2 in a plastic dish. c PPP mixed with 0.1% CaCl2 on a watch glass. d PRP mixed with 0.1% CaCl2 and a collagen sponge in a plastic dish. Similar results were obtained from three other donorsBack to article page