Text and Data Mining valid from 2018-08-06
Received: 6 December 2017
Accepted: 23 July 2018
First Online: 6 August 2018
Ethics approval and consent to participate
: The experiments with sows were performed in accordance with the International Guiding Principles for Biomedical Research Involving Animals, as proposed by the Society for the Study of Reproduction, with the European Convention on Animal Experimentation and with the German Animal Welfare Act and approved by the Regierung of Oberbayern, Bavaria, Germany, on July 1Superscript removed, 2009.
: The authors declare that they have no competing interests.
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