DOI:
10.1055/s-00000020
Geburtshilfe und Frauenheilkunde
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References
McChesney R, Wilcox AJ, OʼConnor JF et al.
Intact HCG, free HCG beta subunit and HCG beta core fragment: longitudinal patterns in urine during early pregnancy.
Hum Reprod 2005;
20: 928-935
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