(Q39361849)
Statements
1 reference
Ultrasound and human-placental-lactogen screening early detection of twin pregnancies (English)
2 references
L. Grennert
P. H. Persson
G. Gennser
S. Kullander
1 January 1976
1 reference
1 reference
1
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7949
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4-6
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Identifiers
1 reference
1 reference