(Q46472014)
Statements
1 reference
Ethnic differences in the prevalence of anencephaly and sina bifida in Boston, Massachusetts (English)
1 reference
L Naggan
1 reference
B MacMahon
1 reference
1 November 1967
1 reference
1 reference
277
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21
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1119-1123
1 reference
Identifiers
1 reference
1 reference