title: Necessity of product-specific assessments or restrictions of meta-analyses to well-designed and well-powered studies.
authors.forename: Jochen
authors.initials: J
authors.lastname: Sieber
mesh_terms: D000286:Administration, Sublingual; D000485:Allergens / Q000008:administration & dosage; D002986:Clinical Trials as Topic; D003888:Desensitization, Immunologic / Q000379:methods*; D006801:Humans; D015201:Meta-Analysis as Topic; D006109:Poaceae / Q000276:immunology; D006255:Rhinitis, Allergic, Seasonal / Q000517:prevention & control
chemical_list: D000485:Allergens