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|author1=[[User:Mikael Häggström|Mikael Häggström]]

|author2=

*'''Ultrasonography for biliary colic''', which is a severe pain, typically in the right upper quadrant or in the epigastrium, but it may also be retrosternal, and lasts for 20 minutes to 6 hours. Without an indication of inflammation, the investigation is done electively (within a couple of weeks).<ref>[https://books.google.se/books?id=HxzEDgAAQBAJ&pg=PA478&lpg=PA478 Page 478] in: {{cite book|title=Acute Medicine: A Practical Guide to the Management of Medical Emergencies|author=David C. Sprigings, John B. Chambers|edition=5|publisher=John Wiley & Sons|year=2017|isbn=9781118644263}}</ref>