TY  - RPRT
TI  - Perinatal mortality rates.
AU  - R A Knuppel
AU  - J H Shepherd
PY  - 1980
DO  - 10.1136/bmj.280.6228.1376
UR  - https://pubmed.ncbi.nlm.nih.gov/7388549/
ID  - 7388549
ER  -