He's been in their lives for over 10 years. But it goes on, and it will evolve.â. Indeed, Grey's has persevered after the departures of several regular cast members, including Isaiah Washington, Sandra Oh, Katherine Heigl, T.R. Knight, Kate Walsh, Eric Dane, Chyler Leigh, and Kim Raver.
1 Some state that the average human attention span is approximately 5 minutes; others state that most healthy teenagers and adults are unable to sustain attention on one thing for more than about 20 minutes at a time, although they can choose repeatedly to re-focus on the same thing.
Expected Source of Payment at Emergency Department Visits for Adults Aged 18-64 for the United States and in the Five Most Populous States, 2012. Injury-related visits to hospital emergency departments by sex, age, and intent and mechanisms of injury Health, United States, 2015, table 75 [PDF - 9.8 MB] Percent of adults with emergency department visits in the past 12 months according to selected characteristics Health, United States, 2015, table 74 [PDF - 9.8 MB] Percent of children with emergency department visits in the past 12 months by selected characteristics Health, United States, 2015, table 73 [PDF - 9.8 MB]