Diwakar, C.; Kumar, S.; Seema, K.; Aslami, A. N.; Alwa, B. A Comparative Study of Nasal Smear and Nasal Biopsy in the Confirmation of the Diagnosis of Allergic Rhinitis in a Tertiary Hospital of Rohtas District, Bihar. Int J Otorhinolaryngol Head Neck Surg 2018, 4, 815-818.