As many as 20 percent of the proteins that are found in saliva are also found in blood, said Fred Hagen, a researcher at the University of Rochester Medical Center in New York who worked on the study.

• 研究员；在纽约罗切斯特大学医学中心深造.；他说”在唾液中被发现的约20%25的蛋白质同样在血液中也存在