TY - JOUR T1 - Comparative Clinical Haematology JF - Journal of Clinical Pathology JO - J Clin Pathol SP - 606 LP - 606 DO - 10.1136/jcp.31.6.606-b VL - 31 IS - 6 AU - E. Cotchin Y1 - 1978/06/01 UR - http://jcp.bmj.com/content/31/6/606.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -