D. V. Williams et al. (2019)

Bariatric surgery

1 Goretti et al. (2020)

Spine surgery 1 Parker et al. (2017) Cancer car

van Egdom et al. (2019)

Cardiac surgery 1 van Veghel et al. (2016)

Pain-level achieved Oncological surgery

1 Ackerman et al. (2019)

Orthopedic surgery

2 Berglund et al. (2019)