Effects of repeated gram-positive and gram-negative clinical mastitis episodes on milk yield loss in Holstein dairy cows - Schukken, YH; Hertl, J; Bar, D; Bennett, GJ; Gonzalez, RN; Rauch, BJ; Santisteban, C; Schulte, HF; Tauer, L; Welcome, FL; Gröhn, YT (J Dairy Sci, 2009)