TY  - RPRT
TI  - [Microcatheterization using the umbilical route in the newborn].
AU  - D Willard
AU  - R Sacrez
AU  - J Messer
AU  - H Freysz
PY  - 1972
UR  - https://pubmed.ncbi.nlm.nih.gov/5045900/
ID  - 5045900
ER  -