Amruta Jagdish Rajenimbalkar, Shreya Avinash Jankar, Vaishali Shripad Balwande, and Ravindra S. Dhimdhime, “Oja: the essence of vitality in Ayurveda — a review of classical concepts, physiological correlates, and clinical significance”, NJRAS, vol. 13, no. 04, Nov. 2025.