Khurram, M., Ambreen, S., Shafiq, M. A., Shahzad, M. N., Zikria, F., Shah, S. Y., & Mumtaz, H. (2021). Unifocal Langerhans Cell Histiocytosis Presenting as Spontaneous Pneumothorax. Journal of Advances in Medicine and Medical Research, 33(19), 103-110. https://doi.org/10.9734/jammr/2021/v33i1931084