Increased secretion by cell.
http://purl.obolibrary.org/obo/UPHENO_0054990
http://purl.obolibrary.org/obo/UPHENO_0054940
http://purl.obolibrary.org/obo/UPHENO_0049647
http://purl.obolibrary.org/obo/UPHENO_0054962