S1U1B3M3U1C3O1S1A1
15 points
SUBMUCOSA is validvalid
[n SUBMUCOSAE, SUBMUCOSAS]
the connective tissue underlying a mucous membrane [n SUBMUCOSAE or SUBMUCOSAS]
[n SUBMUCOSAE, SUBMUCOSAS]
the connective tissue underlying a mucous membrane [n SUBMUCOSAE or SUBMUCOSAS]