Supplemental Materials - Geographic Accessibility of Dermatology Care in the United States via Walking and Motorized Transport: A Quantitative Analysis of Population-weighted Travel Time Distributions

Supplemental materials for the article - Geographic Accessibility of Dermatology Care in the United States via Walking and Motorized Transport: A Quantitative Analysis of Population-weighted Travel Time Distributions本论文配套补充材料——《美国步行与机动交通下皮肤科医疗服务的地理可达性：人口加权出行时间分布的定量分析》