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Article History

Received: 30 July 2018

Accepted: 12 February 2019

First Online: 26 February 2019

Ethics approval and consent to participate

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: The authors have read and understood the editorial policies on declaration of interests and declare the following interests: Conceição Saldanha has received consulting fees and honorarium from Roche Sistemas Diagnósticos Lda. as well as supports for travel to meetings for the study. José Maria Moutinho has received consulting fees from Roche Sistemas Diagnósticos, Lda. Carlos Catalão is an employee of Roche Sistemas Diagnósticos, Lda. and Jari Kempers is an employee of Roche Diagnostics the Netherlands. Fernando Arrobas works for Datamedica, Consultoria e Serviços em Bioestatística, Lda., a company that has a non-disclosure agreement with Roche Sistemas de Diagnóstico, Lda. for conducting their research studies on this matter. Ângela Pista, Carlos Costa and José Alberto Fonseca Moutinho declare they have not received any financial compensation for their participation in this study.

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