Thornton, R. Julkaisussa World Clinic Series, 27 (1995) “...educational training...”
Urbanchek, J. Julkaisussa World Clinic Series, 27 (1995) “...educational training...”
Loose, D. Julkaisussa World Clinic Series, 27 (1995) “...educational training...”
Parratto, M. Julkaisussa World Clinic Series, 27 (1995) “...educational training...”