Biofilm Formation by Multidrug-Resistant Serotypes of <i>Salmonella</i> Isolated from Fresh Products: Effects of Nutritional and Environmental Conditions oleh María-Guadalupe Avila-Novoa, Pedro-Javier Guerrero-Medina, Velia Navarrete-Sahagún, Itzel Gómez-Olmos, Noemí-Yolanda Velázquez-Suárez, Lucia De la Cruz-Color, Melesio Gutiérrez-Lomelí