This URL seems very unstable, so I archived the file at http://web.archive.org/web/20191223233751/https://cioms.ch/wp-content/uploads/2017/01/WEB-CIOMS-EthicalGuidelines.pdf .

In general, it is good practice to provide not just links but also an archived version when citing a URL.

Of course, it would be even better if policies themselves were FAIR (Findable, Accessible, Interoperable and Reusable), as discussed, for instance, in https://github.com/Daniel-Mietchen/events/blob/master/PIDapalooza-2018.md .

Would be nice if that identifier would lead somewhere useful. A web search for it yielded https://doi.org/10.12688/wellcomeopenres.15442.1 , which is also included in the collection "GFBR: The ethics of data sharing and biobanking in health research" available via https://wellcomeopenresearch.org/collections/gfbr18 .