Some terms do not seem to have children/parents, but should

[matentzn]

OLS:

https://www.ebi.ac.uk/ols4/ontologies/snomed/classes/http%253A%252F%252Fsnomed.info%252Fid%252F26098002?lang=en

IHDTSO:

https://browser.ihtsdotools.org/?perspective=full&conceptId1=26098002&edition=MAIN/2023-07-31&release=&languages=en

Somehow now parents / children are shown.