Bottecchia D, Fantin G P, Gruppo P, Nassuato G, Barbera M
Experientia. 1977 Nov 15;33(11):1527-9. doi: 10.1007/BF01918851.
The spontaneous clot retraction of platelet-rich plasma is inhibited by previous in vitro ADP-induced platelet aggregation. The electrical stimulation of the clot always restores a maximal clot retraction, even after a prolonged previous in vitro platelet aggregation.