@article{miquelutti_cecatti_morais_makuch_2009,  title={The vertical position during labor: pain and satisfaction},  volume={9},  ISSN={1519-3829},  url={https://doi.org/10.1590/S1519-38292009000400002},  DOI={10.1590/S1519-38292009000400002},  number={4},  journal={Revista Brasileira de Saúde Materno Infantil},  publisher={Instituto de Medicina Integral Prof. Fernando Figueira},  author={Miquelutti, Maria Amelia and Cecatti, Jose Guilherme and Morais, Sirlei Siani and Makuch, María Yolanda},  year={2009},  month={Oct},  pages={393–398} }