1. Referral to hospital: can we do better?;Marinker, M.; Wilkin, D.; Mietcalfe, D.H.;BrMedj,1988
2. Fffectiveness and efficiencv. Random reflections on health services. Rock Carling Fellowship Monograph;Cochrane, A.L.,1971
3. Encouraging the development of integrated health centres: a critical analysis of lower referral rates;Wijkel, D.;Soc Sci Med,1986
4. A study of the contents of referral letters from general practitioners to an accident and emergency department;Thurston, C.J.; Mitchell, R.; Little, K.;Health Bull (Edinb),1982
5. Referral letters from general practitioners;Durkin, C.J.; Edwards, A.;J R Coll Gen Pract,1975