“…An abnormal stability of the platelets against lysis or a diminished prothrombin content could cause a thromboplastin deficiency. The work of Sahli, 7 Wöhlisch, 33 Minot and Lee, 34 and others support the hypothesis that the platelets of a hemophilic patient are less active than those of a healthy individual. Fonio 35 once held the view that the hemophilic platelets contain less thrombocyme (thromboplastin), but recently 36 has concluded that the stability of the platelets is responsible for hemophilia.…”