Enlaces:
[1] http://www.sld.cu/uvs/patologiaclinica/verpost.php?pagina=1&blog=http://articulos.sld.cu/patologiaclinica&post_id=302&c=8957&tipo=2&idblog=45&p=1&n=ej
[2] http://www.sld.cu/uvs/patologiaclinica/verpost.php?pagina=1&blog=http://articulos.sld.cu/patologiaclinica&post_id=304&c=8957&tipo=2&idblog=45&p=1&n=ej
[3] http://www.sld.cu/uvs/patologiaclinica/