{HEAD ~ The invention} is directed to a device for delivering an active agent formulation for {TAIL ~ a predetermined administration period} 
{ HEAD ~ The invention } is directed to a device for delivering an active agent formulation for { TAIL ~ a predetermined administration period }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL