Gastrointestinal duplication is a congenital rare disease entity. Gastric duplication cysts seem to appear even more rar......

前肠作为昆虫的暂时储存并初步消化食物的场所，不同的种类在内部结构上有所不同，并已证明其作为分类特征的可靠性。运用生理解剖及扫......