@article{mariani_pêgo-fernandes_2014, title={Willingness to pay... What???}, volume={132}, ISSN={1516-3180}, url={https://doi.org/10.1590/1516-3180.2014.0000131}, DOI={10.1590/1516-3180.2014.0000131}, number={3}, journal={Sao Paulo Medical Journal}, publisher={Associação Paulista de Medicina - APM}, author={Mariani, Alessandro Wasum and Pêgo-Fernandes, Paulo Manuel}, year={2014}, pages={131–132} }