Phillips C, White RP, Shugars DA, Zhou X. Risk factors associated with prolonged recovery and delayed healing after third molar surgery. J Oral Maxillofac Surg. 2003 Dec 1;61(12):1436-48.
Mansfield CA, Van Houtven G, Huber J. The efficiency of political mechanisms for siting nuisance facilities: are opponents more likely to participate than supporters? J Real Estate Financ Econ. 2001;22(2/3):141-62.