Pijuan-Domenech A, Pineda V, Ferreira-Gonzalez I, Marsal JR, Castro Miguel A, Sureda-Barbosa C, Valente F, Miranda B, Subirana-Domenech T, Dos-Subira L, Garcia-Dorado D, Casaldaliga-Ferrer J. Diagnosing abnormal end-diastolic forward flow: new definition proposal based on healthy controls. IJC CHD. 2021 Aug;4:100140. doi: 10.1016/j.ijcchd.2021.100140
French M, Neighbors D, Carswell L, Williams R, Bush L. A model for estimating industry compliance costs of food labeling regulations. Agribusiness: An International Journal. 1993;8(2):165-86.