TY  - RPRT
TI  - Graded compression sonography in acute appendicitis.
AU  - R A Niekel
AU  - L E Lampmann
PY  - 1986
DO  - 10.1055/s-2008-1048968
UR  - https://pubmed.ncbi.nlm.nih.gov/3022347/
ID  - 3022347
ER  -