@article{Rid_Monteverde_2013, title={Note of clarification}, volume={143}, url={https://smw.ch/index.php/smw/article/view/1694}, DOI={10.4414/smw.2013.13782}, number={2122}, journal={Swiss Medical Weekly}, author={Rid, Annette and Monteverde, Settimio}, year={2013}, month={May}, pages={w13782} }