RT Journal Article SR Electronic T1 Syphilis and Salvarsan JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 246 OP 246 DO 10.3399/bjgp19X702533 VO 69 IS 682 A1 Gervase Vernon YR 2019 UL http://bjgp.org/content/69/682/246.abstract AB