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Sulfite concentration and the occurrence of headache in young adults: a prospective study

Crossref DOI link: https://doi.org/10.1038/s41430-019-0420-2

Published Online: 2019-04-08

Published Print: 2019-09

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Silva, Miguel

Gama, Jorge

Pinto, Nuno

Pivi, Glaucia

Brancal, Hugo

Carvalho, Lurdes

Loureiro, Virgílio

Patto, Maria Vaz https://orcid.org/0000-0002-0653-3428
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Article History

Received: 11 December 2018

Revised: 11 March 2019

Accepted: 20 March 2019

First Online: 8 April 2019

Compliance with ethical standards

:

: The authors declare that they have no conflict of interest.

: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This project was validated by the Faculty of Health Sciences UBI Ethics Committee, Portugal. All the participants signed an informed consent.