1
My Bookmarks | University College London, http://readinglists.ucl.ac.uk/users/6D714FB1-A427-97EF-DBD8-213640E63F66/bookmarks.html.
2
My Bookmarks | University College London, http://readinglists.ucl.ac.uk/users/6D714FB1-A427-97EF-DBD8-213640E63F66/bookmarks.html#.
3
An introduction to medical statistics Bland 5th edition.  2015, .
4
M. Bland, An introduction to medical statistics, .