Correspondence: Roberto Lozano Ortiz Pharmacy Department, Hospital Real Nuestra Señora de Gracia, Zaragoza, Ramon y Cajal 6050004 Zaragoza, Spain Tel +3 49 7644 4300 Fax +3 48 7676 4555 Email [email protected] Having read with great interest the article by Goto et al and in order to clarify further some of the results presented in this article, especially with regard to the action of atyp...