RT Journal Article SR Electronic T1 Established endocrine practice JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 91 OP 91 DO 10.7861/clinmedicine.19-1-91a VO 19 IS 1 A1 Sam M O’Toole A1 Morris J Brown A1 William M Drake YR 2019 UL http://www.rcpjournals.org/content/19/1/91.2.abstract