Wunder, D., Neurohr, E.-M., Faouzi, M., & Birkhäuser, M. (2013). Origin and outcome of multiple pregnancies in Bern, Switzerland, 1995–2006 and the current proposal of the Swiss parliament to revise the Swiss law of reproductive medicine: Switzerland quo vadis?. Swiss Medical Weekly, 143(3738), w13864. https://doi.org/10.4414/smw.2013.13864