@article{Morawin:2020,
  author  = "B. Morawin and A. Kasperska and A. Zembroń-Łacny",
  title   = "The Impact of Professional Sports Activity on GH-IGF-I Axis in Relation to Testosterone Level",
  journal = "American Journal of Men's Health",
  pages   = "1--8",
  year    = "2020",
}