TY  - RPRT
TI  - Is the lecithin/sphingomyelin ratio outdated?
AU  - D K James
AU  - V R Tindall
AU  - T Richardson
PY  - 1983
DO  - 10.1111/j.1471-0528.1983.tb06436.x
UR  - https://pubmed.ncbi.nlm.nih.gov/6639903/
ID  - 6639903
ER  -