RT Journal Article SR Electronic T1 Age adjusted D-dimers JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 93 OP 93 DO 10.7861/clinmedicine.19-1-93 VO 19 IS 1 A1 Andrew Thompson YR 2019 UL http://www.rcpjournals.org/content/19/1/93.abstract