Meneses F, Ney JG, Torres AG, Trugo NM. Erythrocyte membrane and plasma non-esterified n-3 and n-6 polyunsaturated fatty acids of pregnant and non-pregnant Brazilian adolescents. Prostaglandins Leukot Essent Fatty Acids. 2009 Feb-Mar;80(2-3):137-42. [PUBMED]