Chiu, HL; Chan, PT; Chu, H; Hsiao, SS; Liu, D; Lin, CH; Chou, KR. "Effectiveness of Light Therapy in Cognitively Impaired Persons: A Metaanalysis of Randomized Controlled Trials". Journal of the American Geriatrics Society. 65 (10). oktyabr 2017: 2227–2234. doi:10.1111/jgs.14990. PMID28734045.
Chiu, HL; Chan, PT; Chu, H; Hsiao, SS; Liu, D; Lin, CH; Chou, KR. "Effectiveness of Light Therapy in Cognitively Impaired Persons: A Metaanalysis of Randomized Controlled Trials". Journal of the American Geriatrics Society. 65 (10). oktyabr 2017: 2227–2234. doi:10.1111/jgs.14990. PMID28734045.