Baluda V P, Shiriaev V V, Simova N, Georgievskaia B
Biull Eksp Biol Med. 1977 Apr;83(4):434-5.
As shown the inhibitory effect of aspirin administered in vivo on platelet aggregation and factor 3 release in vitro was due to the action of aspirin on the blood platelets and plasma cofactors: plasma from aspirinized rats dimished aggregability of platelets from untreated animals; plasma from untreated rats increased the aggregability and factor 3 availability of platelets from aspirinized animals.