The United States should create multispecialty COVID-19 clinics dedicated to treating patients still experiencing serious multiorgan effects of infection well after recovery from acute illness, say the authors of a comprehensive review of literature on so-called coronavirus "long-haulers" published yesterday in Nature Medicine.An estimated 28 million long-haul COVID-19 cases have been reported in the United States, but the researchers said that many patients struggle in silence or become frustrated when their doctors don't consider that their symptoms could be related to their previous infection.Chest pain, fatigue, shortness of breathThe review, led by researchers at New York-Presbyterian/Columbia University Irving Medical Center, found