RT Journal Article SR Electronic T1 An IVF pregnancy, a neck lump and shortness of breath JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 61 OP 61 DO 10.7861/clinmedicine.16-1-61a VO 16 IS 1 A1 Kyle F Petrie YR 2016 UL http://www.rcpjournals.org/content/16/1/61.2.abstract