TY - GEN AU - Contreras,M AU - de Silva,M TI - Preventing incompatible transfusions SN - 0959-8138 PY - 1994///0616 KW - ABO Blood-Group System KW - Blood Group Incompatibility KW - etiology KW - Clinical Competence KW - Humans KW - Transfusion Reaction N1 - Publication Type: Editorial; Comment UR - https://doi.org/10.1136/bmj.308.6938.1180 ER -