| 1 | Even in brothels he wanted to monopolize because he had money. | |
| 2 | Methods Surveillance data of female sex workers in 2008 were collected and parts of the data were analyzed. | |
| 3 | Conclusion Applying indirect division methods could estimate the size of male clients who made sex trade with street-based FSW simply and quickly. | |
| 4 | Methods After getting the informed consent from the CSWs, one by-one questionnaire interview and the specimen for STD test were conduct. | |
| 5 | To explore a method to conduct quantitative evaluation on HIV prevention program among Commercial Sex Workers using annual Behavior Surveillance Survey data. |