The risk factors of avascular necrosis in patients with systemic lupus erythematosus: a meta-analysis.

The aim of this study was to determine the risk factors for avascular necrosis (AVN) in patients with systemic lupus erythematosus (SLE). Four electronic databases (PubMed, EMBASE, Ovid, and Science Direct) were searched for. The search was performed to identify the articles as to SLE with AVN before September 2013.

[A cross-sectional survey on hepatitis B among general population in areas along Yangzi River in Anhui province].

Objective: To describe the epidemic status of hepatitis B along the Yangzi River area, in Anhui province.

Methods: A cross-sectional seroepidemiological survey was conducted and the samples were collected by stratified cluster sampling. Serological biomarkers to hepatitis B virus were tested using enzyme-linked immunosorbent assay (ELISA) reagents.