{{Cite journal| doi = 10.1097/MEJ.0b013e328348b460| issn = 1473-5695 (Electronic) 0969-9546 (Linking)| volume = 19| issue = 2| pages = 73–6| last1 = Hasler| first1 = R. M.| last2 = Bach| first2 = P.| last3 = Brodmann| first3 = M.| last4 = Heim| first4 = D.| last5 = Spycher| first5 = J.| last6 = Schotzau| first6 = A.| last7 = Evangelopoulos| first7 = D. S.| last8 = Zimmermann| first8 = H.| last9 = Exadaktylos| first9 = A. K.| title = A pilot case-control study of behavioral aspects and risk factors in Swiss climbers| journal = Eur J Emerg Med| date = 2012-01-31| pmid = 22286097}}