Expression of concern: Role of vitamin D in the academic performance of health sciences students in Saudi Arabia

The publisher of Arab Gulf Journal of Scientific Research is issuing an expression of concern for the following article AlZahrani WI, Oommen A (2023), “Role of vitamin D in the academic performance of health sciences students in Saudi Arabia”. Arab Gulf Journal of Scientific Research, Vol. 41 No. 1 pp. 40-47, doi: https://doi.org/10.1108/AGJSR-04-2022-0028. An investigation by the publisher found a number of articles with multiple concerns, including but not limited to compromised editorial handling and reviewing, undisclosed conflicts of interest and lack of suitability for the scope of the journal. As a result of these concerns and as trust in the content is central to the integrity of the publication process, the Editor-in-Chief and publisher have taken the decision to publish an expression of concern for all articles within this special issue. The journal has not been able to confirm whether the authors were aware of these concerns. The authors of this article would like to note that they do not agree with the content of this notice. An investigation is ongoing and is currently unresolved. Further information will be provided by Arab Gulf Journal of Scientific Research as it becomes available.