Ballesteros, J., Moral, E., Brieva Ruiz, L., Ruiz-Beato, E., Prefasi, D., & Maurino, J. (2017). Psychometric properties of the SDM-Q-9 questionnaire for shared decision-making in multiple sclerosis: Item response theory modelling and confirmatory factor analysis. BioMed Central.

Ballesteros, Javier, Ester Moral, Luis Brieva Ruiz, Elena Ruiz-Beato, Daniel Prefasi, and Jorge Maurino. Psychometric Properties of the SDM-Q-9 Questionnaire for Shared Decision-making in Multiple Sclerosis: Item Response Theory Modelling and Confirmatory Factor Analysis. BioMed Central, 2017.

Ballesteros, Javier, et al. Psychometric Properties of the SDM-Q-9 Questionnaire for Shared Decision-making in Multiple Sclerosis: Item Response Theory Modelling and Confirmatory Factor Analysis. BioMed Central, 2017.