The Hawthorne effect as a pre-placebo expectation in Parkinsons disease patients participating in a randomized placebo-controlled clinical study - Morberg BM; Malling AS; Jensen BR; Gredal O; Wermuth L; Bech P (Nordic Journal of Psychiatry, 2018)
FEMU ID: 37406; EMF-Portal URL: https://www.emf-portal.org/en/article/37406