Chiang, Shu-ChuanShu-ChuanChiangChen, Chuan-YuChuan-YuChenChang, Yuan-YingYuan-YingChangSun, Hsiao-JuHsiao-JuSunChen, Wei J.Wei J.Chen2009-05-202018-06-292009-05-202018-06-292007http://ntur.lib.ntu.edu.tw//handle/246246/158867application/pdf283588 bytesapplication/pdfen-USPrevalence of heroin and methamphetamine male users in the northern Taiwan, 1999–2002: capture-recapture estimatesjournal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/158867/1/85.pdf