As the drone takes off, the skyline of Kathmandu is shrouded in a thick layer of polluted haze that has been lingering for weeks. Visibility has also dropped over the weeks, delaying the flights. On ...

Pulmonary sarcoidosis is a lung disease characterized by granulomas -- tiny clumps of immune cells that form in response to inflammation. It's the most inflammatory of the interstitial lung diseases ...

Adults with COPD who used inhaled corticosteroids for more than 24 months faced higher risks for diabetes, osteoporosis, ...