Expression of concern: “ASD2-TL∗ GTO: Autism spectrum disorders detection via transfer learning with gorilla troops optimizer framework” [Heliyon, Volume 9, Issue 11, November 2023, e21530]

Post-publication, the journal was alerted to concerns regarding a dataset used in this study and cited via reference number 40. It has been reported that the dataset contains images of patients without autism spectrum disorder (ASD) diagnosis. In addition, there is no information about informed patient consent. The journal contacted the authors for clarification, and they stated that they were not aware of these concerns.