20 Singapore Airlines passengers injured by turbulence still in intensive care, many needing spinal surgery CBS News‘I Was Dripping Blood’: Inside the Turbulence-Hit Singapore Airlines Plane The Wall Street JournalBrain, skull and spine injuries on turbulent Singapore flight Yahoo! VoicesWhy passengers should always wear a seatbelt while flying: ex-pilot Business InsiderBangkok hospital says several badly injured on turbulence-hit Singapore flight need spinal surgery The Associated Press