@inproceedings{inproceedings7c000af7, title = {Retinol excreted in the urine of aids patients . Pulmonary report}, author = {Silveira, S A and Jordao Junior, A A and Figueiredo, J F C and Vannucchi, H}, year = {1996}, booktitle = {Congresso da Sociedade Brasileira de Medicina Tropical} }