@article{{MRA}{}, author = {Handlin, L., Muller, J., Ekström, A.}, title = { Promoting health of Swedish workers by complementary methods - example of a study design of a longitudinal randomized controlled intervention study}, journal = {Medical Research Archives}, volume = {5}, number = {8}, year = {2017}, url = {https://esmed.org/MRA/mra/article/view/1432} }