Electronic searches
We performed a systematic search with no language restrictions of the
following bibliographic databases: PubMed, Medline, Embase, BIOSIS
citation index (BCI), and the Cochrane Library. Search terms included:
“oral immunotherapy” or “oral tolerance” or “oral
desensitization”, “milk allergy” or “milk hypersensitivity”. The
search was up-to-date as of April 30, 2021. In addition, we reviewed the
references of the articles included to identify potentially relevant
citations.