title: Study examines FDA warning letters about medical devices from 2009.
authors: Department of Electronic Engineering, Shenzhen Polytechnic, China.
authors: Hongli
authors: H
authors: Yang
authors: William A
authors: WA
authors: Hyman
mesh_terms: D003257:Consumer Product Safety; D015709:Correspondence as Topic; D057053:Safety-Based Medical Device Withdrawals; D014481:United States; D014486:United States Food and Drug Administration