Cabral, J M Pina, A Cunha Monteiro, J Aguiar Andrade, J M Soares Fortunato, M C Sousa Dias, A Braga, J Mesquita Guimarães, Carlos Resende, A Lopes Vaz, Domingos Araújo, and A. Albino Teixeira. 1988. “ Preliminary Study”. Acta Médica Portuguesa 1 (3). Lisbon, Portugal:191-95. https://doi.org/10.20344/amp.3564.