Saccharomyces boulardii stimulates sIgA production and the phagocytic system of gnotobiotic mice - Rodrigues, A. C.; Cara, Denise Carmona; Fretez S. H.; Cunha, Fernando de Queiroz; Vieira, E. C.; Nicoli, J. R.; Vieira, Leda Q (Journal of Applied Microbiology, 2000)