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2. D)o referral rates vary widely between practices and does supply of services affect demand?;Noosne, A.; Goldacre, M.; Coulter, A.; Seagroatt, V.,1989
3. I'ariations in hospital admission rates: a revie, c of the literature;Sanders, D.; Coulter, A.; McPherson, K.,1989
4. T'srms o-f service for doctors in general practice;Department of health,1989
5. General practitioners' referrals to specialist outpatient clinics. I. Why general practitioners refer patients to specialist outpatient clinics,1989