title: Generic tools.
abstract: Health is a complex concept. In 1946, the World Health Organization (WHO) defined it as 'a state of complete physical, mental and social well-being, and not merely the absence of disease and infirmity'1. 'Ill' health could thus be defined as feelings of pain and discomfort or change in usual functioning and feeling.
authors.affiliation: Director of research, Centre for Research and Implementation of Clinical Practice, The Royal Masonic Hospital, London.
authors.forename: P J
authors.initials: PJ
authors.lastname: Franks