DOI:
10.1055/s-00000094
Zeitschrift für Gastroenterologie
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References
Spix C, Blettner M.
Screening: part 19 of a series on evaluation of scientific publications.
Dtsch Arztebl Int 2012;
109: 385-390 . doi:10.3238/arztebl.2012.0385
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