宁夏医科大学（宁夏医学院）：《营养与食品卫生学》课程教学资源（实验指导）实验一 食品样品的采集与制备

宁夏医科大学（宁夏医学院）：《营养与食品卫生学》课程教学资源（实验指导）实验十二 食品中亚硝酸盐含量测定

宁夏医科大学（宁夏医学院）：《营养与食品卫生学》课程教学资源（实验指导）实验十一 白酒中甲醇的测定

宁夏医科大学（宁夏医学院）：《营养与食品卫生学》课程教学资源（实验指导）实验十 膳食调查

Definition of pregnancy Pregnancy is defined as the course of embryo and fetal growth and development in uterine It begain at the fertilization and end the delivery of the fetal and it's attachment

定义 孕28周后,胎盘附于子宫下段,甚至胎盘下缘 达到或覆盖宫颈内口,位置低于胎儿先露部 ,称为前置胎盘

Incidence and Prevalence: Increase significantly Range from 1~50% General population: 1~2% Infertile women: 30~50% Occurs primarily in women in 25~45s

Dystocia literally means difficult labor and it is characterized by abnormally slow progress of labor It is the consequence of four distinct abnormalities that may exist singly or combination

Definition Preterm Labor: Labor occurring prior to the completion of 37 weeks' of gestation (228 weeks), or 196-258 days from the last menstrual period (LMP)

Cerebral vascular Disease Definition of term: The term cerebrovascular disease designates any abnormality of the brain resulting from a pathologic process of the blood vessels. Sudden loss of neurological function is the hallmark of cerebrovascula disease. Cerebrovascular disease is the third most common cause