1. Campylobacter ileocolitis mimicking acute appendicitis: differentiation by graded-comprcssion US;JB(M, Puslacrt; der Wert SD)J, Lalisang R.I.Van; L, Doornbos;Radtologv,1988
2. The use of ultrasound in patients with clinical stgns of appendicitis [Doctoral thesis]. ILeiden: Unisersity of;Puylaert, J.B.C.M.;Leiden
3. A prospectivle study of ultrasonography in the diagnosis of appendicitis;Puylaert, J.B.C.M.; Rutgers, P.H.; Lalisang, R.I.;N Englj Med,1987
4. Minor degrees of cervical intraepithelial neoplasia;Jordan, J.A.;Br Medj,1988