The clinical course and outcome of COVID-19 are highly variable, ranging from
asymptomatic infections to severe disease and death. Understanding the risk factors of …

In acute coronavirus disease 19 (COVID‐19) patients, effective clinical risk stratification has
important implications on treatment and therapeutic resource distribution. This article …

Background We describe demographic features, treatments and clinical outcomes in the
International Severe Acute Respiratory and emerging Infection Consortium (ISARIC) COVID …

Importance Electronic cigarettes (e-cigarettes) are less harmful to users than combustible
cigarettes. However, public health and media reporting have often overstated the potential …

Nicotinic acetylcholine receptors (nAChRs) present as many different subtypes in the
nervous and immune systems, muscles and on the cells of other organs. In the immune …

Abstract The coronavirus disease 2019 (COVID-19) pandemic has affected> 610 million
people globally, exerting major social, economic, and health impacts. Despite the large …

The lungs, in addition to participating in gas exchange, represent the first line of defense
against inhaled pathogens and respiratory toxicants. Cells lining the airways and alveoli …

Research is limited regarding adolescents' and young adults'(AYA) patterns, methods of,
and reasons for cigarette or e-cigarette cessation. Further, while adults may try to use e …

Cigarette smoke aggravates severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐
2) infection. However, the underlying mechanisms remain unclear. Here, they show that …

Background Since the beginning of the SARS-CoV-2 pandemic, over 550 million people
have been infected worldwide. Despite these large numbers, the long-term pulmonary …