Number of drugs in the medication list as an indicator of prescribing quality: a validation study of polypharmacy indicators in older hip fracture patients
1. N?rh?lsan Dals-Ed Health Center, Dals-Ed, Sweden 2. Department of Geriatrics, Sahlgrenska University Hospital, M?lndal, Sweden 3. Department of Clinical Pharmacology, Sahlgrenska University Hospital, SE-413 45, G?teborg, Sweden