Simple google search on: referencing style for Biomedical field in UK universities ... As per above comments, each institute and discipline will have their preferred styles. Saving all your references onto a program such as EndNote means that you can use the same references and automatically change the style on any document to suit the reader. Endnote also lists major institutional styles for you to choose from. Any reader will appreciate a familiar referencing style being used. Other option is to access publications from the institution and see what style they use, or search institution library website.
For historians: use Chicago style and write your thesis with msword in combination with Endnote online (this is free software). Saves you lots of time.