States Environmental Protection Agency. [2021-04-30]. (原始内容存档于2021-06-01). Urban green spaces: a brief for action. UN City, Denmark: World Health Organization
company)可把醫療衛生不平等的條件改善,並可把聯邦政府每年在花在非緊急醫療運輸服務上270萬美元的費用予以降低。一些醫療系統(例如MedStar Health和DenverHealth Medical Center)與優步,來福車,還有其他共乘服務公司合作,解決患者的交通問題,並改善收入和護理品質。
the Central and Southern Rockies (Denver: Rocky Mountain Association of Geologists, 1977) 285–291. US Environmental Protection Agency, Evaluation of Impacts