Comparative study of the lecithin/sphingomyelin quotient, phosphatidylglycerol and Clement's test, and the percentage of orange cells, in relation to fetal maturity

1. Saez, E.
2. Perez-Gonzalez, R.
3. Callejo, P.
4. Maldonado, J.
5. Cabanes, A.
6. Remon, J.
7. Arbues, J.
8. Molina, M.