Correction to: Scientific Reports https://doi.org/10.1038/s41598-022-06404-3, published online 11 February 2022
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Mohammed, A.A., Haris, S.M. Author Correction: Using energy time–frequency of Hilbert Huang transform to analyze the performance of the variable valve timing engine. Sci Rep 12, 7114 (2022). https://doi.org/10.1038/s41598-022-11360-z
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DOI: https://doi.org/10.1038/s41598-022-11360-z
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