Understanding Rhinitis describes causation and effects of hay fever, elucidating six types of rhinitis. Ideal for allergist consultations, this 22" x 28" includes a large cross section of the paranasal sinuses and illustrates normal respiratory mucosa verses inflamed mucosa. Superimposed and cutaway views shows sinus position in relation to human head. You can order extra frames if required. May require extra time for manufacturing more than a few frames.
Note: Two inches larger than standard posters