RT Journal Article SR Electronic T1 Recurrent thrombosis despite a therapeutic international normalised ratio JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 211 OP 212 DO 10.7861/clinmedicine.13-2-211 VO 13 IS 2 A1 Amy Carroll A1 Linda Griffiths A1 Vaikom Mahadevan A1 Jaspal Dua A1 Jecko Thachil YR 2013 UL http://www.rcpjournals.org/content/13/2/211.abstract