@article{maciel_pedroso_barsottini_2011,  title={Facial grimacing as a clue for the diagnosis of GM1 type 3 gangliosidosis},  volume={69},  ISSN={0004-282X},  url={https://doi.org/10.1590/S0004-282X2011000300028},  DOI={10.1590/S0004-282X2011000300028},  number={2b},  journal={Arquivos de Neuro-Psiquiatria},  publisher={Academia Brasileira de Neurologia - ABNEURO},  author={Maciel, R O H and Pedroso, J L and Barsottini, O G P},  year={2011},  pages={406–407} }