TY  - RPRT
TI  - Ultrasound in developing countries.
AU  - A Kurjak
AU  - B Breyer
PY  - 1987
DO  - 10.1016/0301-5629(87)90102-5
UR  - https://pubmed.ncbi.nlm.nih.gov/3303581/
ID  - 3303581
ER  -