How collecting data about the dead led the famous nurse to promote better sanitation.
📆 2019-05-24 18:00 / ⌛ 00:24:01
📆 2019-05-20 15:00 / ⌛ 00:09:05
📆 2019-05-17 18:44 / ⌛ 00:27:57
📆 2019-05-13 10:00 / ⌛ 00:15:06
📆 2019-05-10 19:14 / ⌛ 00:27:36