RT Journal Article SR Electronic T1 ‘With a pinch of salt’ revisited JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 518 OP 518 DO 10.7861/clinmedicine.10-5-518 VO 10 IS 5 A1 Francesco P Cappuccio YR 2010 UL http://www.rcpjournals.org/content/10/5/518.abstract