a variety of other phospholipids ( e.g . phosphatidylinositol ) , fatty acids ( e.g . arachidonic acid ) , prostanoids ( e.g . pge1 ) retinoids ( e.g . retinoic acid ) , and glyceryl ether phosphorylcholines ( `` '' platelet-activating factors '' '' ) were without effect .
C0035339
retinoids
C0040845
retinoic acid