bupivacaine polylactic acid microspheres
gentamycin sulfate-polylactic acid-microspheres
hydroxyl-terminated polylactic acid
modified polylactic acid
polyglycolic-polylactic acid
Polylactic Acid Biodegradable Material
polylactic acid copolymer
polylactic acid fiber PLA
polylactic acid grafting starch
polylactic acid membrance
polylactic acid membrane
polylactic acid microcapsules
polylactic acid microspheres