Wutsqa, A. U.; Ita Rini; Pujiningrum, A. R. S.; Muthmainnah, M. The Effect of Deep Breathing Exercise on Lung Capacity of Dyspepsia Patients at the Clinics Pada Idi Medical Center and Prima Physio Sakura, Makassar City. PERS Journal 2026, 1, 44-54.