How do patients and health care professionals perceive de-implementation of routine follow-ups after total hip or knee arthroplasty? Protocol for a nested qualitative study within a hybrid effectiveness de-implementation trial - Lex D. de Jong; Dominique C. Baas; Lidy A.C. Roubos; Jantsje H. Pasma; Ariena J. Rasker; Marijn Rutgers; Ronald A.W. Verhagen; Sigrid N.W. Vorrink; Nienke W. Willigenburg; Rudolf W. Poolman (PLoS ONE, 2025)