Friday the 13th and full-moon: the "worst case scenario" or only superstition? - Exadaktylos, A. K.; Sclabas, G.; Siegenthaler, A.; Eggli, S.; Kohler, H. P.; Luterbacher, J. (Am J Emerg Med, 2001)
Keywords: journalArticle; *Periodicity; *Superstitions; Emergency Service, Hospital/*statistics & numerical data; Humans; Switzerland