Fraser's scientific approach was manifest in his ChM dissertation, nominally on inguinal hernia in childhood but containing a detailed account of the descent of the testis which was based on 1000 cases he studied and which contained many original observations.
Fraser's approach to science was demonstrated through his Master's thesis, which focused on inguinal hernias in children but also provided a detailed study of testicular descent based on 1000 patient observations, many of which were original findings.