Pinheiro, M. ., Morosoli, J. ., Colodro-Conde, L. ., Ferreira, P. ., & . (2018). Genetic and environmental influences to low back pain and symptoms of depression and anxiety: A population-based twin study. Journal of Psychosomatic Research, 105, 92-98. https://doi.org/10.1016/j.jpsychores.2017.12.007