I read on https://pubmed.ncbi.nlm.nih.gov/30265128/:
- PMID: 30265128 (PMID=PubMed identifier)
- DOI: 10.1164/rccm.201806-1083IM
However when trying to convert the DOI 10.1164/rccm.201806-1083IM
ot its PMID on https://www.ncbi.nlm.nih.gov/pmc/pmctopmid/ I get "Identifier not found in PMC":
Same issue with:
- PMID: 29794847; DOI: 10.1097/SLA.0000000000002825
- PMID: 30601258; DOI: 10.1097/SLA.0000000000003154
- PMID: 31725892; DOI: 10.1093/eurheartj/ehz824
Why do I get a "Identifier not found in PMC" error message when trying to convert a valid DOI that has a PMID?
(Note that DOI names are case insensitive).