# clinicalkey-elsevier > Analysis by Optimly for Optimly AI Visibility, in the Optimly AI Brand Index. Last analyzed September 6, 2026. > ClinicalKey is a comprehensive clinical search engine and medical reference platform for healthcare professionals, providing evidence-based content including clinical overviews, drug monographs, medical calculators, guidelines, books, journals, procedure videos, and patient education materials to inform clinical decisions and deepen medical knowledge. It also offers an AI-powered conversational search feature. - Business Profile: https://optimly.ai/brand/clinicalkey-elsevier - Publisher: Optimly (https://optimly.ai) - Dataset: Optimly AI Brand Index (https://optimly.ai/brand) - Official website: https://clinicalkey.com/ - Logo: https://logo.clearbit.com/clinicalkey.com - Slug: clinicalkey-elsevier - Brand Authority Index tier: Low Visibility - Category: AI Clinical Decision Support Platforms - Last Analyzed: September 6, 2026