Effect Of Nigella sativa Cement Extract on Procalcitonin, TNF-α Level and Time to Clinical Stable in Pneumonia Patients. J Respirol Indones [Internet]. 2017 Oct. 17 [cited 2026 Feb. 2];37(4):316-24. Available from: http://www.jurnalrespirologi.org/index.php/jri/article/view/87