End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
JAMA:FDA 於 2018-2021 年核准藥物,10% 樞紐試驗未達主要療效指標 https://geneonline.news/surrogate-endpoint-fda-approval/