A simple and sensitive method for determination of vitamins D ( 3 ) and K ( 1 ) in rat plasma : application for an in vivo pharmacokinetic study .
O O O O O O O O B-MAT I-MAT I-MAT I-MAT I-MAT I-MAT I-MAT I-MAT I-MAT I-MAT O O O O O O O O O O O O