"Recombinant Interleukin-4|IL4 (NIH - Gene)" . "IL4 gene|IL4 (NIH - Gene)" . "IL4 (NIH - Gene)" . "Interleukin-4|IL4 (NIH - Gene)" . "Interleukin 4 Receptor|IL4 (NIH - Gene)" . "il4 gene (nih - gene)" . "Toll-Like Receptor 2|IL4 (NIH - Gene)" . "STF|IL4 (NIH - Gene)" . . "interleukin-4 variant|IL4 (NIH - Gene)" . "interleukin-4-Pseudomonas exotoxin|IL4 (NIH - Gene)" . .