References
- van Buchern L, Peeters M, Beaumont J, Knottnerus J A. Acute maxillary sinusitis in general practice: the relation between clinical picture and objective findings. Eur J Gen Pract 1995; 1: 155–60
- van Duijn N P, Brouwer H J, Lamberts H. Use of symptoms and signs to diagnose maxillary sinusitis in general practice: comparison with ultrasonography. Br Med J 1992; 305: 684–7
- Williams J W, Simel D L, Roberts L R, Samsa G P. Clinical evaluation for sinusitis: making the diagnosis by history and physical examination. Ann Intern Med 1992; 117: 705–10
- Berg O, Carenfelt C. Analysis of symptoms and clinical signs in the maxillary sinus empyema. Acta Otolaryngol 1988; 105: 343–9
- de Bock G H, Houwing-Duistermaat J J, Springer M P, Kievit J, van Houwelingen J C. Sensitivity and specificity of diagnostic tests in acute maxillary sinusitis determined by maximum likelihood in the absence of an external standard. J Clin Epidemiol 1994; 47: 1343–52