How do phase three clinical trials differ from previous clinical trials in terms of patient numbers?
Covid-19 Is Not a Benign Disease in Children: Johns Hopkins

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What is the significance of pausing a clinical trial when a serious side effect is reported?
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What have recent studies indicated about the severity of COVID-19 in children compared to the elderly?
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Why is it important to trace and isolate COVID-19 cases in schools and universities?
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What challenges are schools facing in managing COVID-19 as students return to campus?
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