State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, China Department of Endodontics, West China ...
1 School of Nursing, Medical College of Qingdao University, Qingdao, China 2 Department of Epidemiology and Health Statistics, Medical College of Qingdao University, Qingdao, China Recently, it is ...
Being rich usually means having a high income or a sudden windfall. For example, in 2023, the average personal income in the U.S. was $59,384. But to be in the top 1% , you must make an average ...