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"Blood transfusion is like marriage: it should not be entered upon lightly, unadvisedly or wantonly or more often than is absolutely necessary." This statement from Robert Beal clearly indicates the necessity and potential risk of blood transfusion and thus the importance of "Hemovigilance".doi:10.21276/apalm.2368 fatcat:fcgppfuyp5f4zgcye3a7ju7via