Di Pierro, Francesco, Annamaria Parolari, Benedetta Brundu, and Raffaele Nigro. 2017. “Positive Clinical Outcomes Derived from Using a Proprietary Mixture of Selected Strains During Pregnancy”. Acta Biomedica Atenei Parmensis 87 (3): 259-65. https://mattioli1885journals.com/index.php/actabiomedica/article/view/5618.