TY - RPRT TI - Prothrombin time testing practices: adherence to guidelines and standards. AU - Shahram Shahangian AU - Kathleen M Labeau AU - Devery A Howerton PY - 2006 DO - 10.1373/clinchem.2005.065433 UR - https://pubmed.ncbi.nlm.nih.gov/16638952/ ID - 16638952 ER -