HSPA5 and obesity disorder: A literature search with the keywords “GRP78” or “BiP/HSPA5” gave more than 20,000 publications in the Web of Science, PubMed, ACS, Elsevier and Wiley databases, but few using the keywords of “obesity” and “GRP78” or “BiP/HSPA5” (accessed on 15 September 2022).