Franco, Daniela, Daniela Alves, Ana Cristina Almeida, Carlos Costa Almeida, Cecília Moreno, and Joâo Freixo. 2015. “Spontaneous Non Ischaemic Blue Finger: A Rare and Benign Phenomenon”. Acta Médica Portuguesa 28 (4). Lisbon, Portugal:528-30. https://doi.org/10.20344/amp.5867.