Reis, R P, J Azinheira, H P Reis, M Pereira, A Baptista, M Crespo, J E Pina, N C Ferreira, and A S Luís. 1994. “Homocysteinemia As a Risk Factor in Early Cerebrovascular Disease”. Acta Médica Portuguesa 7 (5). Lisbon, Portugal:285-9. https://doi.org/10.20344/amp.2899.