You can search either by selecting the Course Category 140 – Aviation Medicine, or by entering a keyword or a part of it.
Aviation Medicine Concepts For Medical Examiners http://www4.icao.int/learning/home/overview
provides an introductory course for those doctors who are, or who wish to
become, designated medical examiners (DMEs) of pilots and traffic
controllers. The on-line course is free of charge (although registration
is necessary) and takes about two hours. A certificate of successful
completion is provided to those who obtain a satisfactory score in the final
test (which is not compulsory), but the certificate is not recognised as
adequate training for those who wish to become DMEs, for which more extensive
training and experience is necessary. Although intended primarily for
medical examiners, the course may be of
interest to anyone who wishes to learn more about civilian aviation medicine.