In the 20th century, medical breakthroughs were less important in reducing mortality from major diseases than clean water pic.twitter.com/pnzoqM5wsn— Jeremy Neufeld (@JeremyLNeufeld) June 10, 2022
In the 20th century, medical breakthroughs were less important in reducing mortality from major diseases than clean water pic.twitter.com/pnzoqM5wsn
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