TY  - RPRT
TI  - Cardiotocography versus Doppler.
AU  - R S Black
AU  - S Campbell
PY  - 1997
DO  - 10.1046/j.1469-0705.1997.09030148.x
UR  - https://pubmed.ncbi.nlm.nih.gov/9165677/
ID  - 9165677
ER  -