One of the proposed explanations was that lots of people actually had fingers which naturally posed like that, which, if true, would be of interest to people in biomedicine. The paper was published in Acta Biomedica, an international, peer-reviewed, open access journal that publishes original research articles, reviews, and case reports in the field of biomedical sciences. It then got slurped into various journal indices and online libraries, including the National Library of Medicine at the NIH.
