TY  - RPRT
TI  - A modified direct retainer design for distal-extension removable partial dentures.
AU  - Z Ben-Ur
AU  - I Aviv
AU  - H S Cardash
PY  - 1988
DO  - 10.1016/0022-3913(88)90280-6
UR  - https://pubmed.ncbi.nlm.nih.gov/3050050/
ID  - 3050050
ER  -