AUTHOR=Aguilera Isabel , Sousa Jose Manuel TITLE=Comments on: Differential IgG4-Producing Plasma Cell Infiltration in Non- and Post-Transplant Plasma Cell Hepatitis JOURNAL=Transplant International VOLUME=35 YEAR=2022 URL=https://www.frontierspartnerships.org/journals/transplant-international/articles/10.3389/ti.2022.10590 DOI=10.3389/ti.2022.10590 ISSN=1432-2277