Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (Project UID/Multi /00709/2013)
Text and Data Mining valid from 2019-03-02
Received: 11 December 2018
Revised: 18 January 2019
Accepted: 29 January 2019
First Online: 2 March 2019
Compliance with ethical standards
: The present study was approved by the ethics committee from Casas de Santiago and has been conducted according to ethical standards. The analyzed samples belonged to individuals who gave an informed consent for their use (including the drug-free samples used in the validation experiments, provided by laboratory staff), and all analyses were carried out according to the ethical standards of the institution.
: The authors declare that they have no conflicts of interest.