Se recomiendan exámenes anuales de pulmón para los mayores de 50 aunque no hayan fumado mucho tiempo

By BY DENISE GRADY from NYT en Español https://ift.tt/2OhAgCr

What Does ‘Negative’ on a Coronavirus Test Really Mean?

By BY KATHERINE J. WU from NYT Health https://ift.tt/3j2eR9Q

C.D.C.’s ‘Clarification’ on Coronavirus Testing Offers More Confusion

By BY SHERYL GAY STOLBERG from NYT U.S. https://ift.tt/2D4cfJp

‘It’s Like Having No Testing’: Coronavirus Test Results Are Still Delayed

By BY SARAH MERVOSH AND MANNY FERNANDEZ from NYT U.S. https://ift.tt/3fou2YY