@article{1458927,
      author = {Wienert, Volker, and Raulf, Franz, and Mlitz, Horst,},
      url = {http://library.usi.edu/record/1458927},
      title = {Anal fissure : symptoms, diagnosis and therapies /},
      recid = {1458927},
      pages = {1 online resource (170 pages) :},
}