In the June Drug Watch, the sentence "Von Willebrand disease [horizontal ellipsis] is caused by a deficiency in the von Willebrand factor (factor VIII in the clotting of blood, known also as the antihemophilic factor) [horizontal ellipsis]" should have read, "Von Willebrand disease [horizontal ellipsis] is caused by a deficiency in the von Willebrand factor (factor VIIIR in the clotting of blood)[horizontal ellipsis]."