Rafsanjani, Arief, Endang Darmawan, Nurcholid Umam Kurniawan, Tri Puspita Yuliana, and Aditya Noviadi Rakhmatullah. 2021. “Analisis Kaplan Meier Terhadap Perbaikan Klinis Batuk Pada Pasien Pneumonia Anak Yang Diberikan Terapi Tambahan Vitamin D: Kaplan Meier’s Analysis of Clinical Improvement of Cough in Child Pneumonia Patient’s That Given With Additional Vitamin D Therapy”. Jurnal Surya Medika (JSM) 7 (1):83-87. https://doi.org/10.33084/jsm.v7i1.2632.