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Medians for second-trimester maternal serum markers: geographical differences and variation caused by median multiples-of-median equations
  1. Correspondence to:
    G Vranken
    Analis NV, Leeuwerikstraat 28, B-9000 Gent, Belgium; gvn{at}analis.be
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Citation

Vranken G, Reynolds T, Van Nueten J
Medians for second-trimester maternal serum markers: geographical differences and variation caused by median multiples-of-median equations

Publication history

  • Accepted November 21, 2005
  • First published May 26, 2006.
Online issue publication 
October 25, 2017

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