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Article History

Received: 19 June 2024

Revised: 5 September 2024

Accepted: 20 September 2024

First Online: 19 October 2024

Change Date: 27 October 2025

Change Type: Update

Change Details: Editor’s Note: Readers are alerted that concerns have been raised about the methodology of this study. Editorial action will be taken if appropriate once all parties have had an opportunity to respond and our investigation has been completed.

Change Date: 13 December 2025

Change Type: Correction

Change Details: This article has been retracted. Please see the Retraction Notice for more detail:

Change Details: https://doi.org/10.1007/s00431-025-06685-6

Declarations

:

: This study was carried out in accordance with the Declaration of Helsinki and National Ethical guidelines for Biomedical and Health Research involving human participants by Indian Council of Medical Research (2017) and was approved by the Central Ethics Committee, CCRH, New Delhi (ref. 1–3/2017–18/CCRH/Tech/21st EC/1375), and the Institutional Ethics Committee of the JIMS Homoeopathic Medical College & Hospital, Telangana (ref. JIMSHMC/CCRH/2018–19/1543/c/1st EC/2 & 5).

: Written informed consent was obtained from all parents prior to enrolling their children in the study. This trial was registered in Clinical Trial Registry-India (CTRI 2018/ 09/015641).

: The authors declare no competing interests.