(Q55654834)
Statements
Perinatal mortality by birth order within cohorts based on sibship size (English)
1 reference
1 reference
Bakketeig LS
1 reference
L. S. Bakketeig
1 September 1979
1 reference
22 September 1979
1 reference
2
1 reference
6192
1 reference
693-696
1 reference
1 reference
Identifiers
1 reference
1 reference