This is another Cambridge Journals thing … the European Review has an issue on ancient medicine and the following are free (all the papers are pdf):

Heikki Solin, Was there a Medical School at Salerno in Roman Times?

Vivian Nutton, Galen and Roman Medicine: or can a Greek become a Latin?

Lola Ferre, The Jewish Contribution to the Transmission of the Classical Legacy

Gotthard Strohmaier, Arabic Medicine: Continuation of Greek Tradition and Innovation

… it seems easiest to access them here …