Nunca intentes limpiar tu cubrebocas de alto rendimiento. Aunque parezca un tejido sintético, las mascarillas de respiración de tipo médico…
I asked Dr. Marr for additional tips on how to take care of a respirator mask to maximize its use.…
SAN JOSE, Calif. — Using charisma, poise and a smattering of scientific jargon, Elizabeth Holmes persuaded investors to give her…
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