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
}}