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Retraction Note: Efficacy of oral folinic acid supplementation in children with autism spectrum disorder: a randomized double-blind, placebo-controlled trial

Crossref DOI link: https://doi.org/10.1007/s00431-026-06769-x

Published Online: 2026-01-29

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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