The direct antiglobulin test (DAT) is used to determine whether red blood cells (RBCs) have been coated in vivo with immunoglobulin, complement, or both. The direct antiglobulin test is sometimes colloquially referred to as the Coombs test, because it is based on a test developed by Coombs, Mourant, and Race.
China's southernmost province of Hainan on Saturday began issuing marine environment forecasts for Huangyan Island in the South China Sea.
Ryukyu Islands, also called Nansei Islands, Japanese RyÅ«kyÅ«-ShotÅ, or Nansei-ShotÅ, Ryukyuan Okinawa, archipelago, extending some 700 miles (1,100 km) southwestward from the southern Japanese island of Kyushu to northeastern Taiwan.