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Why ER Killed Off Dr. Mark Greene In Season 8
In a fittingly tragic death, Dr. Mark Greene died from a brain tumor in ER season 8, episode 21, "On The Beach." After an extended battle with brain cancer that includes several ups and downs ...
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ER: Every Doctor Who Died On The Show (& How)
Here's every ER doctor who died on the show. Related ... After surviving a brain tumor in season 7, Dr. Mark Greene succumbed to relapse in ER's season 8 episode 21, "On The Beach." ...