Stephen A Buetow, Bonnie Sibbald, Judith A Cantrill, Shirley Halliwell
Buetow S A, Sibbald B, Cantrill J A, Halliwell S.
Prevalence of potentially inappropriate long term prescribing in general practice in the United Kingdom, 1980–95: systematic literature review
BMJ 1996; 313 :1371
doi:10.1136/bmj.313.7069.1371