A same ethical approval number of SDTHEC2024004013 was found to be shared by three articles [1, 2, 3] from Shandong Cancer Hospital and Institute, an investigation by the 5GH Team reveals.
A same ethical approval number (XMYY-2024KYSB090) in three articles [1, 2, 3] coauthored by YE Guanzhi (叶冠志) et. al., with The First Affiliated Hospital of Xiamen University. However, This ethical approval is questionable.
Five articles [1, 2, 3, 4, 5] coauthored by ZHAO Mei (赵媚) with the Institute of Psychology, Chinese Academy of Sciences, share the same ethical approval, which was granted on Nov.10th, 2023 with the grant number of H23128. However, this ethical approval is questionable.
The article [1] reports the prevalence of cleft lip and palate (CLP) in Hubei province of China, during 2015 and 2022. However, comparing to the numbers reported in other articles, the prevalence of 0.44‰ reported in article [1] seems to be abnormal.