To link to the content of EndoNet use the EndoNet ID that is given on the detail
pages in the format ENX0000, where X is a place holder for the type of
the component (e. g. R for receptor or C for anatomical structure).
As URL
for the linking append this ID to the detail page for this type of component.
For an hormone that would be:
The innermost lining of the heart cavities, which includes endothelium and subendothelial connective tissue; in the atrial wall, smooth muscle and numerous elastic fibers also occur