Nishide, Akemi; Fujita, Takashi; Nagaregawa, Yoshiteru; Shoyama, Yukihiro; Ohnuki, Keiko; Shimizu, Kuniyoshi; Yamamoto, Tuneyuki; Watanabe, Tomonari et al. (2018). «Sleep enhancement by saffron extract in randomized control trial». Japanese Pharmacology and Therapeutics46 (8): 1407-1415. ISSN0386-3603. Consultado el 27 de abril de 2023.Se sugiere usar |número-autores= (ayuda)
Nishide, Akemi; Fujita, Takashi; Nagaregawa, Yoshiteru; Shoyama, Yukihiro; Ohnuki, Keiko; Shimizu, Kuniyoshi; Yamamoto, Tuneyuki; Watanabe, Tomonari et al. (2018). «Sleep enhancement by saffron extract in randomized control trial». Japanese Pharmacology and Therapeutics46 (8): 1407-1415. ISSN0386-3603. Consultado el 27 de abril de 2023.Se sugiere usar |número-autores= (ayuda)