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Clinical analysis of late-onset methylmalonic acidaemia and homocystinuria, cblC type with a neuropsychiatric presentation

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  • Contributors Y-rL and Y-fJ contributed equally to this study. Yan-ru Liu and Yang-fei Ji were involved in writing the manuscript. Ya-li Wang was the patients' consultant psychiatrist, and the other authors were the patients' consultant neurologists. All authors were involved in the management of the patients. Bo-ai Zhang and Hong Lu were involved in the interpretation and critical revision of the manuscript.

  • Funding This study was supported by a grant from the Foundation of He’nan Educational Committee (No. 14A360010).

  • Competing interests None.

  • Patient consent Obtained.

  • Ethics approval All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (the Medical Ethics Committee of the First Affiliated Hospital of Zhengzhou University) and with the Helsinki Declaration of 1975, as revised in 2000 (5).

  • Provenance and peer review Not commissioned; externally peer reviewed.