[Effect of ditching for drain on control of Oncomelania hupensis snail in beaches of Dongting Lake].

Objective: To evaluate the effect of ditching for drain on the control of the breed of Oncomelania hupensis snails in beaches of Dongting Lake.

Methods: From November, 2009 to November, 2012, an 0. hupensis snail infested beach of the Yueyang jail and an O.

[Study on correlated factors and clinical features of fungal rhinosinusitis].

Objective: To investigate the correlated factors and clinical features of fungal rhinosinusitis.

Methods: The clinical data of 110 patients with fungal rhinosinusitis treated by surgery and another group of 110 patients with chronic rhinosinusitis who were sampled randomly between January 1999 and June 2004 in our hospital were retrospectively compared. The correlated factors and the clinical features of fungal rhinosinusitis were investigated by using the multiple factor Logistic regression analysis and chi-square test.