RT Journal Article SR Electronic T1 Nurse:patient ratios – time for a target? JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 99 OP 100 DO 10.7861/clinmedicine.14-2-99 VO 14 IS 2 A1 Humphrey Hodgson YR 2014 UL http://www.rcpjournals.org/content/14/2/99.abstract