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. 2015 Dec 23;57:46. doi: 10.1186/s40781-015-0079-8

Fig. 1.

Fig. 1

Concentrations of (a) interleukin (IL) - 1, (b) interleukin (IL) – 6, and (c) tumor necrosis factor (TNF) in the serum of periparturient dairy cows with (■, n = 6) or without (◇; n = 6) subclinical mastitis (SCM) (LSM ± SEM; Hs = effect of health status; Wk = effect of sampling week; Hs × Wk = effect of health status by sampling week interaction)