Giombi KC, Kosa KM, Rains C, Cates SC. Consumers' perceptions of edible marijuana products for recreational use: likes, dislikes, and reasons for use. Subst Use Misuse. 2018 Mar 21;53(4):541-7. doi: 10.1080/10826084.2017.1343353
Roberts J, Price J, Nelson LM, Burchinal M, Hennon E, Barnes B. Receptive vocabulary, expressive vocabulary, and speech production of boys with fragile X syndrome in comparison to boys with Down syndrome. Am J Ment Retard. 2007 May 1;112:177-93.