WHO世界卫生组织：2024年出生缺陷监测培训：主持人指南第二版报告（英文版）

Has folic acid fortification of staple foods impacted the prevalence of neural tube defects? ` If so, how has it impacted the prevalence of neural tube defects? ` If you have a computer and access to Excel or other spreadsheet program, make a graph with the data provided. ` Public health agencies have a long tradition of monitoring trends in rates of disease and death, and in medical, social and behavioural risk factors that may contribute to these adverse events. Trends in observed rates pro