(Q77470391)
Statements
Preterm birth and maternal smoking: risks related to gestational age and onset of delivery (English)
N B Kyrklund-Blomberg
S Cnattingius
1 October 1998
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference