Premodifier: sustained
Head noun: release

Same concepts
http://dbpedia.org/resource/Time_release_technology

Broader concepts

labelprovenanceconfidence
controlled releaseisap:4381414730.719050
releaseisap:4381414610.529177
formulationisap:663492240.522608
advantageisap:3176540710.442260
drugisap:787061670.177665

Narrower concepts

labelprovenanceconfidence
present inventionisap:249400140.317010
drugisap:24547820.242962