Pickering, Larry K., ed. (2006). "Syphilis". Red Book: 2006 Report of the Committee on Infectious Diseases. American Academy of Pediatrics. pp. 631–644. ISBN1581101945. OCLC70819143.
Pickering, Larry K., ed. (2006). "Syphilis". Red Book: 2006 Report of the Committee on Infectious Diseases. American Academy of Pediatrics. pp. 631–644. ISBN1581101945. OCLC70819143.