Characterization of group A beta-haemolytic streptococcus with mucoid phenotype isolated in a tertiary hospital Julia Guzmán-Puche; Rocio Tejero-Garcia; Pilar Villalón; Silvia Pino-Rosa; Luis Martínez-Martínez;

Molecular characterization of four Group A Streptococcus causing invasive infection in a short time Alba Bellés Bellés; Pilar Villalón Panzano; Mar Miralbés Torner; Albert Bernet Sánchez;