Cochrane Database of Systematic Opinions. 2010 (4): CD002049. doi:10.1002/14651858.CD002049.pub2. Stausholm, Martin Bjørn; Naterstad, Ingvill Fjell; Joensen, Jon; Lopes-Martins, Rodrigo Álvaro Brandão; Sæbø, Humaira; Lund, Hans; Fersum, Kjartan Vibe; Bjordal, Jan Magnus (2019-10-28).... Read more »