{HEAD ~ Dosage unit formulations} containing {TAIL ~ non toxic, pharmaceutically acceptable vehicles} or diluents may be administered 
containing
{ HEAD ~ Dosage unit formulations } containing { TAIL ~ non toxic , pharmaceutically acceptable vehicles } or diluents may be administered
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH