Typical Problems after Introducing Hepatics B Vaccine into EPI 乙型肝炎疫苗接种纳入儿童计划免疫后的共性问题
The miracidium of Fasciola hepatics: The apical papilla is round and thick-walled, with the opening of the apical gland at the centre. There are 4 openings of the gland body and 6 short cilia. 肝片形吸虫毛蚴:顶突呈厚壁圆环状,中央为顶腺开口,壁上有4个腺体的开口及6根短纤毛。