The acorn honey used for a published study was mistakenly listed as quercus pyrenaica and should be corrected to quercus species

A critical review letter1 was published concerning the article “Quercus pyrenaica honeydew honey effects on gastric adenocarcinoma cells” published in Integrative Cancer Therapies in 2019.2 According to the letter, the authors reported that the Quercus pyrenaica mentioned in the study was neither found in Mount Ida nor within the borders of Turkey as stated in the study, therefore the results obtained in the study may belong to another Quercus species.