Featured series 
Tag: Mark Poznansky
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Nation & World
From Kyiv to Harvard and back
Harvard Scholars at Risk program allows physicians to continue their education during wartime.
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Nation & World
Viewing Ukraine’s war-torn health care through a personal lens
Ukrainian American physicians from Harvard Medical School and affiliated hospitals gathered virtually Tuesday to share experiences with the war.
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Nation & World
Vaccine holds promise against ovarian cancer
A novel approach to cancer immunotherapy — strategies designed to induce the immune system to attack cancer cells — may provide a new and cost-effective weapon against some of the most deadly tumors, including ovarian cancer and mesothelioma.
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Nation & World
Tissue engineering produces an artificial gland
Your thymus is a walnut-sized gland that sits just above your heart. The master gland of the immune system, one of the thymus’ chief functions is to produce T lymphocytes,…