This article also illustrates the existing problems and particularity of people s employment and income in western regions inhabited by ethnic groups.

Survey on HBsAg and HBeAg Carrying Situation among Catering and Entertainment Place Employees in Yingkou City from 2002 to 2004;

Knowledge Rates of Laws and Regulations on Food Hygiene among Employees of Catering Trade in Jing an District, Shanghai;

Analysis of HBsAg、HBeAg Test Results among Employees from Catering and Entertainment Place in Dalian Development Zone from 2004 to 2006;

Investigation on the Status of the Practitioners from Food Production,Business and Catering Trade in Shandong;

199 Practitioners in Psychological Clinic in Beijing City;

Physical Examination Status of Food and Public Places Practitioners in Zhongshan City in 2007;

Entertainment industry jobholders syphilis infection situation analysis;

Shallowly Discusses in the Drive Mechanism Library Jobholders Continuing Education;

Investigation on the Knowledge,Attitude,and Behavior Related to Hepatitis B Prevention Among Public Place Workers in Xining City;

Investigation of workers healthy exercise and its counterplot;

The medium market competition is being daily intense as the pace of ceonomic globalization is speeding and the technologic means of propaganda is daily changing, this offers higher requirements about the quality of workers who werking for broadcast.

Investigation on Hepatitis B Virus among Employees from Catering Enterprises and Public Places in Nanhai District of Foshan from 2002 to 2006;

Investigation on Syphilitic Infection among Employees in Ganjingzi District from 1998 to 2006;

Investigation on Carrier of HBsAg among Employees in Food and Public Places in Donge County in 2006;