@incollection{Piotr11,
author = {Skałba Piotr},
title = {Menstrual Cycle Disturbances at Reproductive Age},
booktitle = {Update on Mechanisms of Hormone Action},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Gianluca Aimaretti with Paolo Marzullo and Flavia Prodam},
chapter = {19},
doi = {10.5772/16993},
url = {https://doi.org/10.5772/16993}
}