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. Author manuscript; available in PMC: 2021 Mar 1.
Published in final edited form as: Mol Genet Metab. 2019 Dec 30;129(3):228–235. doi: 10.1016/j.ymgme.2019.12.012

Figure 2: Algorithm to classify Type 1 GM1 gangliosidosis used as inclusion criteria for retrospective literature cohort.

Figure 2:

Due to the overlapping disease characteristics between Type 1 and Type 2 patients, a classification scheme was created to identify patient cases that exhibited the Type 1 phenotype. This scheme was based on findings from the preliminary review of the GM1 gangliosidosis literature.