@inbook {khan2014biodegradable,
	title = {Biodegradable polymers for focal delivery systems},
	booktitle = {Focal Controlled Drug Delivery},
	year = {2014},
	pages = {3{\textendash}32},
	publisher = {Springer, Boston, MA},
	organization = {Springer, Boston, MA},
	author = {Khan, Wahid and Challa, Venu Gopala Swami and Langer, Robert and Domb, Abraham J}
}
