[Tuniu Announces Unaudited Fourth Quarter and Fiscal Year 2015 Financial Results Net Revenues in Q4 2015 Increased by 104.1% Year-Over-Year Gross Bookings in Q4 2015 Increased by 102.1% Year-Over-Year NANJING, China, Feb. 29, 2016 /PRNewswire/ -- Tuniu Corporation (NASDAQ:TOUR) ("Tuniu" or the "Company"), a leading online leisure travel company in China, today announced its unaudited financial results for the fourth] []