4Phillips P, Voak D, Knowles S,et a]. An explanation and the elini- ca] significance of the failure of microcolumn tests to detect weak ABO and other antibodies. Transfus Med, 1997,7 ( 1 ) :47-53.
5Cummins D, Downham B. Failure of DiaMed ID mierocolumn sys- tem to detect major ABO incompatibility. Lancet, 1994, 343 (8913) :1649-1650.
6Weisbach V, Ziener A, Zimmermann R, et al. Comparison of the performance of four microtube column agglutination systems in the detection of red cell alloantibodies. Transfusion, 1999,39: 1045- 1050.