Hashempur, M. H., Lari, Z. N., Ghoreishi, P. S., Daneshfard, B., Ghasemi, M. S., Homayouni, K., Zargaran, A.. (2015). A pilot randomized double-blind placebo-controlled trial on topical chamomile (Matricaria chamomilla L.) oil for severe carpal tunnel syndrome. Complementary Therapies in Clinical Practice, 21(4), 223-8.