The theory of conceptual structures serves as a common basis for natur
al language processing and medical concept representation. We present
a PROLOG-based formalization of dependency grammar that can accommodat
e conceptual structures in its dependency rules. First results indicat
e that this formalization provides an operational basis for the implem
entation of medical language parsers and for the design of medical con
cept representation languages. (C) 1998 Elsevier Science B.V.