TY - JOUR AU - CarriƩ, I TI - Menaquinone-4 concentration is correlated with sphingolipid concentrations in rat brain JO - J Nutr VL - 134 PY - 2004 DO - 10.1093/jn/134.1.167 L3 - PubMed-ID: 14704312 SP - 167 EP - 172. N1 - et al. ER -