As a follow-up on the previous post, here is another journal article using surnames as potential indicators of disease inheritance (in this case, chronic hypothyroidism). What is interesting about this study is that Rocci employs two fairly novel methods for isonymy research. One is the rarefaction method developed by Howard Sanders to measure species richness, and the other is a statistical randomization method.
Rocchi, M.B. 2006. Surnames as markers of pathologies-two statistical techniques and their applications. Coll. Antropol. 30: 383-385.