A survey of urolithiasis in young children fed infant formula contaminated with melamine in two townships of Gansu, China.

Objective: To determine the prevalence of urolithiasis in young children fed infant formula (IF) contaminated with melamine, and the association between IF consumption and urolithiasis.

Design: A total of 2 733 children < or = 3 years of age on September 1, 2008 in two townships of Gansu Province, China were studied. Cases of urolithiasis were diagnosed by ultrasonography.

[Preliminary studies on pathogenic microorganisms laboratory-acquired infections cases in recent years and its control strategies].

Objective: To analyze and study types, infections routes and causes of global pathogenic microorganisms laboratory-acquired infections cases reported in the literatures from 2000 to 2009 and to discuss prevention and control strategies.

Methods: (1) Pathological observation of hepatic specimens: hepatic tissue pathogenic microorganisms laboratory-acquired infections. Methods PubMed, Embase, Biosis and Webs of Science covering SCIE, SSCI, CPCI-S and CPCI-SSH are chosen as data sources, "laboratory-acquired (associated) infections" are searched as the key words to search laboratory-acquired infections literature published from 2000 to 2009, from which information and data are accessed to be collected, analyzed and researched.

[Study on the relationships between cultural orientation, alcohol expectancy, self-efficacy and drinking behavior among senior high school students in two cities of Henan province].

Objective: To explore the relationships between alcohol expectancy,cultural orientation, self-efficacy and drinking behavior to provide theoretical support for the development of education programs aimed at preventing alcohol abuse among adolescents.

Methods: An anonymous quantitative survey of 2756 tenth and eleventh grade students in six senior high schools in Zhengzhou and Xinyang city of Henan province was conducted in November 2005 and data was analyzed by SPSS 13.0 software.