TY  - RPRT
TI  - Preterm delivery.
AU  - Michael M Slattery
AU  - John J Morrison
PY  - 2002
DO  - 10.1016/s0140-6736(02)11476-0
UR  - https://pubmed.ncbi.nlm.nih.gov/12433531/
ID  - 12433531
ER  -