[Maternal serum screening for Down's syndrome: a user's club experience].

Screening of Down syndrome using maternal serum markers requires specific quality management. We report here a user's club experience (Down's Club Abbott) in surveying performances of AxSYM total beta hCG and AFP reagents combined to Maciel software. Regular analysis was carried out during three years (1998 to 2000).

[Efficacy of oral administration of a micellaar solution of vitamin K during the neonatal period].

Background: Oral administration of vitamin K to neonates is quite satisfactory for preventing hemorrhagic disease of the newborn. The aim of this study is to test efficacy of a micellar solution of vitamin K at birth.

Population And Methods: Thirty full term infants, exclusively breast-fed during the first month of life, were included in this study.