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IP address: 18.209.230.60
Time: 2024-03-29T10:32:17Z
URL: http://scholar.google.com/scholar_lookup?title=Maternal+serum+cell-free+fetal+DNA+levels+are+increased+in+cases+of+trisomy+13+but+not+trisomy+18&year=2003&author=Wataganara&journal=Hum+Genet&volume=112&issue=2&pages=204-208&doi=10.1007%2Fs00439-002-0853-9&pmid=12522563