RT Journal Article SR Electronic T1 DEEP VENOUS THROMBOSIS JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 440 OP 440 VO 27 IS 180 A1 Patricia M. Santer YR 1977 UL http://bjgp.org/content/27/180/440.3.abstract AB