{HEAD ~ The term porous beads} or microsponges refers to {TAIL ~ the time release delivery vehicles} disclosed and claimed in U.S. Pat 
refers to
{ HEAD ~ The term porous beads } or microsponges refers to { TAIL ~ the time release delivery vehicles } disclosed and claimed in U.S. Pat
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH