[Survey of dentists' knowledge and behavior of medications used during pregnancy in Beijing area].

Purpose: To investigate dentists' knowledge and behavior of drugs used during pregnancy in Beijing and analyze sources of influence.

Methods: A cross sectional survey was undertaken among 259 dentists in Beijing. The percentage frequency distributions of correct responses regarding medication safety during pregnancy and the use of drugs were calculated.

[Dynamic change of IL-10 and TGF-beta1 in the liver of Echinococcus multilocularis-infected mice].

Objective: To observe the dynamic expression and function of IL-10 and TGF-beta1 in liver of BALB/c mice infected with Echinococcus multilocularis (Em).

Methods: Sixty female BALB/c mice were randomly divided into experiment group and control group. Mice in the experiment group were each injected with 0.