A Comparative Study of Chamomile Oil and Sesame Oil on Chronic Low Back Pain: A Randomized, Double-Blinded, Controlled Clinical Trial - Abolfazli, Mina; Jalalinia, Seyedeh Fatemeh; Khadem, Ebrahim; Haghani, Hamid; Varaei, Shokoh (Traditional and Integrative Medicine, 2021)