1. Immunoglobulin E.A new class of human immunoglobulin;Bennich;Immunochemistry,1968
2. Saahns, Breathing Better Together. International Asthma Services. Available from: https://www.saahns.org/. [Last accessed on 2023 Oct 16].
3. PRAANA Charitable Allergy Asthma Clinics (PCAAC). Available from: https://praanaclinics.blogspot.com/2021/10/scaac-homepage.html. [Last accessed on 2023 Oct 16].