{{Cite journal| doi = 10.1007/s10459-020-09956-z| issn = 1573-1677 (Electronic) 1382-4996 (Print) 1382-4996 (Linking)| volume = 25| issue = 4| pages = 905–911| last1 = Hautz| first1 = W. E.| last2 = Hautz| first2 = S. C.| last3 = Kammer| first3 = J. E.| title = Whether two heads are better than one is the wrong question (though sometimes they are)| journal = Adv Health Sci Educ Theory Pract| date = 2020-02-08| pmid = 32030571}}