Comparing quality, safety, and costs of colonoscopies performed by nurse vs physician trainees

Renate Massl^*, Paul G. van Putten, Ewout W. Steyerberg, Anthonie J.P. van Tilburg, Jonathan Y.L. Lai, Rogier J.J. de Ridder, Johnannes T. Brouwer, Robert J. Verburg, Joyce Alderliesten, Erik J. Schoon, Monique E. van Leerdam, Ernst J. Kuipers