False-positive pregnancy test after passive transfusion of beta-human chorionic gonadotropin from donor red blood cells during erythrocytapheresis.
Shelat SG, Friedman DF, Meny GM, Smith-Whitley K, Carlow D, Norris R. False-positive pregnancy test after passive transfusion of beta-human chorionic gonadotropin from donor red blood cells during erythrocytapheresis. Transfusion. 2007 May; 47(5):788-91.