Colibacillosis in lambs is associated to type I heat-stable enterotoxin in a farm in São Paulo State, Brazil - Aragão, Annelize Zambon Barbosa; Teocchi, Marcelo Ananias; Fregolente, Maria Clara Duarte; Gatti, Maria Silvia Viccari; Pires, Alexandre Vaz; Yano, Tomomasa (Ciência Rural, 2012)