TY  - GEN
AU  - Onyskowová,Z
AU  - Dolezal,A
TI  - [Frequency of multiple birth in a group of 240,025 deliveries]
SN  - 0374-6852
PY  - 1968///0305
KW  - Czechoslovakia
KW  - Female
KW  - Humans
KW  - Pregnancy
KW  - Pregnancy, Multiple
KW  - Statistics as Topic
KW  - Twins
N1  - Publication Type: Journal Article
ER  -