This invention pertains to delivery devices made of an erodible polymer with a surfactant in the device for modifying {HEAD ~ the rate} of {TAIL ~ erosion} 
This invention pertains to delivery devices made of an erodible polymer with a surfactant in the device for modifying { HEAD ~ the rate } of { TAIL ~ erosion }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL