Official site is here
https://geocarenavigator.hrsa.gov/?page=Home
user select hundreds of zip code, now user want to remove 93252,
It is very hard to find 93252 on left side zip code list
Original design, you can select "de select" radio button, then click for example 92536 to remove it. That is so intuitive easy to use.
https://transparentgov.net/json2tree/datahub.io/uds/uds_data.html?_center_zoom=9&_center_lat=33.266965418651985&_center_long=-116.56824957680723&widgetopacity=0.9&tooltype=deselect&showServiceArea=show&patientsIncluded=34&showHealthCenter=hide