TY - JOUR T1 - An Ortho-tolidine Method for the Detection of Occult Blood in Faeces JF - Journal of Clinical Pathology JO - J Clin Pathol SP - 249 LP - 251 DO - 10.1136/jcp.8.3.249 VL - 8 IS - 3 AU - J. Kohn AU - T. O'Kelly Y1 - 1955/08/01 UR - http://jcp.bmj.com/content/8/3/249.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -