Cheng, Yu-JuenYu-JuenChengTwu, Shiing-JerShiing-JerTwu2009-02-202018-06-292009-02-202018-06-291986http://ntur.lib.ntu.edu.tw//handle/246246/135719en-USBirth Order and HBsAg Carrier Rate:a Statistical Stimulationconference paper