Allergy Diagnostics Market Size, Share & Trends Analysis Report by Product & Service (Consumables, Instruments, Immunoassay Analyzers, ELISA Analyzers), by Allergen (Inhaled Allergens, Food Allergens, Drug Allergens, Other Allergens), by Test Type (In Vivo Tests, Skin Prick Tests, Patch Tests, In Vivo Tests), by End User (Diagnostic Laboratories, Hospital-based Laboratories, Academic Research Institutes, Other End Users), by Region (North America, Europe, Asia Pacific, Latin America and Middle East & Africa) - Global Industry Assessment (2016 - 2021) & Forecast (2022 - 2028)