@book{4331,
	author = {Conjulún Molina, Andrea Marina and Callejas Rivera, Mayra Sofía},
	title = {Presencia de citomegalovirus en IgG, IgM sanguíneos en 30 pacientes con enfermedad periodontal /},
	publisher = {USAC,},
	year = {2008.},
	address = {Guatemala :},
	url = {http://www.repositorio.usac.edu.gt/id/eprint/12369 }
}