1. Periorbital cellulitis;Jackson SRB;Head Neck Surg,1987
2. Orbital and endocranial complications in acute sinusitis in childhood;Magnano;Acta Otorhinolaryngol Ital,1992
3. Periorbital and orbital cellulitis;Israele;Pediatr Infect Dis,1987
4. Clinical implications of orbital cellulitis;Jackson SRB;Laryngoscope,1986