Are patients' preferences for shifting services from medical specialists to general practitioners related to the type of medical intervention?

Bodegom-Vos, L. van, Jong, J.D. de, Spreeuwenberg, P., Curfs, E.C., Groenewegen, P.P. Are patients' preferences for shifting services from medical specialists to general practitioners related to the type of medical intervention? Quality in Primary Care: 2013, 21(2), 81-95