¿Así se muestran los resultados de un ensayo cruzado?

Referencia:

Swanson B, Keithley JK, Sha BE, Fogg L, Nerad J, Novak RM, et al. Policosanol for managing human immunodeficiency virus-related dyslipidemia in a medically underserved population: a randomized, controlled clinical trial. Alternative Therapies in Health and Medicine 2011;17(2):30-5. [PubMed: 21717822]