Parveen, R., Kabir, F. L., Masud, A. H., Sarkar, P. K., & Hoque, M. M. (2025). Primary Immunodeficiency Disorders in Children Suffering from Persistent Pneumonia: Experience from A Tertiary Care Hospital. Dhaka Shishu (Children) Hospital Journal, 39(2), 75–81. https://doi.org/10.3329/dshj.v39i2.82854