And estrone is one of important female hormones and is a useful substance as an intermediate to {HEAD ~ medicines} for {TAIL ~ the therapy} of prostatic hypertrophy and other steroid type medicines 
for
And estrone is one of important female hormones and is a useful substance as an intermediate to { HEAD ~ medicines } for { TAIL ~ the therapy } of prostatic hypertrophy and other steroid type medicines
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH