CR:DOI:4dc6ace4215c8fc18ce986fa74da8519
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{{#scite: |reference=working group2003in |type=article-journal |title=International classification of ultrasound images in cystic echinococcosis for application in clinical and field epidemiological settings |author=WHO Informal Working Group |journal=Acta Tropica |publisher=Elsevier BV |year=2003 |volume=85 |issue=2 |pages=253-261 |doi=10.1016/s0001-706x(02)00223-1 |issn=0001-706X |retrieved-from=https://dx.doi.org/ |retrieved-on=2020-08-04 }}