NACC database in the original form with the drugs mapped

NACC dataset as is, with columns labeled and the pharmaceuticals of interest mapped on the visits.

NACC（国家阿尔茨海默病协调中心，National Alzheimer's Coordinating Center）数据集按原样提供，其所有列均已完成标注，且目标药物已与各访视记录完成关联映射。