- Correspondence to Dr Romeu Mendes, Unidade de Saúde Pública do ACES Douro I—Marão e Douro Norte, Administração Regional de Saúde do Norte, IP, Rua Miguel Torga, 12 F, Vila Real 5000-524, Portugal;
- Accepted December 1, 2015
- First published December 30, 2015.
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