I think you would also need to re-word your comment slightly, as your comment, as written, is not valid in all countries.
Within the BSH Guidelines for pre-transfusion compatibility procedures in blood transfusion laboratories (Milkins C, Berryman J, Cantwell C, Elliott C, Haggas R, Jones J, Rowley M, WIlliams M, Win N. Transfusion Medicine 2013; 23: 3-35) states, in paragraph 4.3.2 D typing, "i Where secure automation is used, D typing may be undertaken using a single IgM monoclonal anti-D reagent, which should not detect DVI. In the absence of secure automation, each sample should be