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Favourable effects of therapy with extracorporeal photopheresis (ECP) to treat skin and mucosa advanced chronic graft-versus-host disease (cGVHD): (A) presentation of symptoms before treatment (+304 day post allo-HSCT); (B) partial regression after two ECP procedures (+310 day post allo-HSCT); and (C) almost complete response after four ECP procedures (+326 day post allo-HSCT).
