Facebook’s blood donation tool makes US debut | CNN

On Wednesday, Facebook launched a blood donation feature in the United States to help users find places to donate blood in their area and be notified when a nearby blood donation center may be in need.分類：blood and organ banks, blood banks, blood donations, blood supply, companies, facebook, health and medical, public health, business figures, continents and regions, north america, sheryl sandberg, the americas, united states, internet and www, social media, technology...