@article{Carvajal-Serna:85400,
      author        = "Carvajal-Serna, M. and Torres-Ruda, F. and Cardozo, J.A.
                       and Grajales-Lombana, H. and Cebrián-Pérez, J.Á. and
                       Muiño-Blanco, T. and Pérez-Pé, R. and Casao, A.",
      title         = "{Changes in melatonin concentrations in seminal plasma are
                       not correlated with testosterone or antioxidant enzyme
                       activity when rams are located in areas with an equatorial
                       photoperiod}",
      year          = "2019",
}