Health care company's shares tumble after ambitious plan [https://www.thestreet.com/.image/t_share/MjE0OTQ1NzE5NjIxMDY4NTgw/gettyimages-1047296794.jpg] Health care company's shares tumble after ambitious plan Singapore’s Basel Medical plans $1B Bitcoin deal via share swap to fuel rapid expansion across Asia’s healthcare markets. [https://www.thestreet.com/crypto/markets/basel-medical-shares-down-over-14-despite-1b-bitcoin-plan]