Spatial analysis of accessibility to healthcare-related facilities in Tokyo Metropolis using geographic information systems - Tomofumi Yamazaki; Seiichiro Ito; Yoko Ino; Kana Sugishita; Koichi Kageyama; Mugita Sato; Satoshi Nakao; Kazuya Nonomura; Hirofumi Tamaki; Kazuhiro Iguchi; Mitsuhiro Nakamura (PLoS ONE, 2026)