Não informado. Western journal of surgery, obstetrics and gynecology. Seattle Surgical Society.
Chicago-viite (17. p.)Não informado. Western Journal of Surgery, Obstetrics and Gynecology. Portland, Ore: Seattle Surgical Society.
MLA-viite (8. p.)Não informado. Western Journal of Surgery, Obstetrics and Gynecology. Seattle Surgical Society.
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