(1)
Bage, R. N.; Singh, S. K.; Srivastava, A.; Manar, M.; Kushwaha, S.; Swaroop, V.; Rai, A. K. Prevalence of Chronic Obstructive Pulmonary Disease Among Non-Smokers in Rural Areas of Lucknow District, Uttar Pradesh, India. Int J Community Med Public Health 2023, 11, 193-202.