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.
https://9lib.net/document/1y9o5xdy-運用基因演算法建構急病預測模型之研究以睡眠呼吸中止症候群為例.html