Correlation of plasma concentrations of progesterone and oestradiol with ultrasound characteristics of the uterus and duration of oestrous behaviour in the cycling mare |
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Authors: | JF Pycock S Dieleman P Drifjhout Y van der Brug C Oei GC van der Weijden |
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Institution: | Department of Herd Health and Reproduction, Faculty of Veterinary Medicine, University of Utrecht, The Netherlands |
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