A technique of solid-phase pla-telet immunoserological assay wasused to select unsuitable plateletdonors for patients with refractory (?)diopathic thrombocytopenic purpura(RITP).The unsuitable plateletswere used as carriers to bind with VP-16 (Etoposide),and then wesetransfused into5patients with RITP.All the cases were benefited by sucha therapy,and 4 of them were cured.indicating that the therapy has itscurative value in clinical practice.(Original article on page 115)