20150612_me_scientists_investigate_what_makes_us_itch.mp3?orgId=1&topicId=1024&aggIds=156490415&d=118&p=3&story=413849162&t=progseg&e=413811408&seg=19&ft=nprml&f=413849162
Copyright 2016 NPR. To see more, visit http://www.npr.org/.