Dias Pereira, J.M., Vieira, M.L., Amaral-Marques, R., Couto, A. and Avila, R. 1983. Stage I of sarcoidosis and changes in respiratory function. Acta Médica Portuguesa. 4, 6 (Jun. 1983), 271–273. DOI:https://doi.org/10.20344/amp.3809.