The author comments on a study by Ying Luo et al published in "The Journal of Pediatric Allergy and Immunology." He claims that based on the appraisal tool Assessing the Methodological Quality of Systematic Reviews, the risk of bias (ROB) result was not accounted in the study by appropriate analysis, nor was it in the discussion part. He states that as a literature review, publication bias in the study was neither checked through appropriate tests such as the Begg and Egger funnel plot test.