(Q67464371)
Statements
Free beta human choriogonadotropin in Down's syndrome screening: a multicentre study of its role compared with other biochemical markers (English)
Free Beta Human Choriogonadotropin in Down's Syndrome Screening: A Multicentre Study of its Role Compared with other Biochemical Markers (English)
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K. Spencer
E. J. Coombes
A. S. Mallard
1 September 1992
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