Bahrani-Mougeot FK, Thornhill M, Sasser H, Marriott I, Brennan MT, Papagerakis S, Coleman S, Fox PC, Lockhart PB. Systemic host immuno-inflammatory response to dental extractions and periodontitis. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008 Oct; 106(4):534-41.