{Reference Type}: Letter {Title}: The minimal erythema dose of narrowband ultraviolet B in elderly Taiwanese. {Author}: Alex Chen WY;Chang CH; {Journal}: Photodermatol Photoimmunol Photomed {Volume}: 0 {Issue}: 0 {Year}: Sep 2021 1 {Factor}: 3.254 {DOI}: 10.1111/phpp.12730 {Abstract}: