Chaves León, Adrian, Maria Morera, Miguel Brenes Espinoza, and Sergio Saldaña Quiel. 2015. “Case Study: Effect of a Physical Exercise and Nutritional Counseling Program on Physical and Psychological Variables in a Person With Fibromyalgia”. MHSalud: Revista En Ciencias Del Movimiento Humano Y Salud 11 (2). https://doi.org/10.15359/mhs.11-2.1.