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.
http://www.healthyd.com/articles/expert-blog/新冠病毒或增心臟病風險-心臟病發先兆-陳麒尹醫生