TY - GEN AU - Kitchen,Steve AU - Kitchen,Dianne AU - Jennings,Ian AU - Woods,Tim AU - Walker,Isobel TI - External quality assessment of CoaguChek point-of-care testing prothrombin time/international ratio monitors SN - 0002-9173 PY - 2008///0610 KW - Humans KW - International Normalized Ratio KW - instrumentation KW - Point-of-Care Systems KW - standards KW - Prothrombin Time KW - Quality Assurance, Health Care KW - methods KW - Quality Control N1 - Publication Type: Comment; Letter ER -