Serbian President Aleksandar Vucic speaks during a welcoming ceremony of China's Sinopharm inactivated coronavirus vaccines in Belgrade, Serbia, Jan. 16, 2021. (Photo by Predrag Milosavljevic/Xinhua) "As an ordinary person and the president of Serbia, I am convinced of the quality of the Chinese vaccine, which will be decided by our competent agency," said Serbian President Aleksandar Vucic. BELGRADE, Jan. 18 (Xinhua) -- A million doses of...