Studying human disease in the laboratory is hampered by difficulties modeling the disease. It’s very unusual for humans to be used as test subjects, so researchers instead rely on animal models and ...

Pollutant particles with a smaller diameter, density, and flow rate can enter the deep lung, but large particles with a low density may also enter the deep airways, according to a study. Researchers ...

Synchronous lung metastasis occurs in less than 1% of patients with renal masses less than 4 cm in diameter, so chest imaging in these cases may be unwarranted, according to investigators. Renal mass ...

Dr. Jonathan E. Eisen: A 47-year-old woman presented to this hospital early during the pandemic of coronavirus disease 2019 (Covid-19), the disease caused by severe acute respiratory syndrome ...