Ahmed, K. S., Saha, S., Islam, M. S. I., Hasanuzzaman, Imtiaz, M., Islam, S., & Saha, S. P. (2016). Using Mask Reduces Respiratory Problems Among the Workers of Ship Breaking Industry. Journal of Dhaka National Medical College & Hospital, 22(2), 21–24. https://doi.org/10.3329/jdnmch.v22i2.77972