Authors
Róża Borecka
Pediatric Unit, Independent Public Health Care Center, Myślenice, Poland
Ryszard Lauterbach
Department of Neonatology, Jagiellonian University Medical College, Kraków, Poland
© 2019 Róża Borecka, Ryszard Lauterbach, published by Institute of Mother and Child
This work is licensed under the Creative Commons Attribution 4.0 License.