Published on in Vol 25 (2023)
![Exploring Perceptions About Paracetamol, Tramadol, and Codeine on Twitter Using Machine Learning: Quantitative and Qualitative Observational Study Exploring Perceptions About Paracetamol, Tramadol, and Codeine on Twitter Using Machine Learning: Quantitative and Qualitative Observational Study](https://asset.jmir.pub/assets/0c0aa4beec77f8579a44eff67439cb83.png 480w,https://asset.jmir.pub/assets/0c0aa4beec77f8579a44eff67439cb83.png 960w,https://asset.jmir.pub/assets/0c0aa4beec77f8579a44eff67439cb83.png 1920w,https://asset.jmir.pub/assets/0c0aa4beec77f8579a44eff67439cb83.png 2500w)
1 Department of Medicine and Medical Specialities, University of Alcalá, Alcalá de Henares, Spain
2 Ramon y Cajal Institute of Sanitary Research, Madrid, Spain
3 Institute of Environmental Medicine, Karolinska Institutet, Unit of Cardiovascular and Nutritional Epidemiology, Stockholm, Sweden
4 ISGlobal, Institut de Salut Global de Barcelona, Campus MAR, Barcelona, Spain
5 Centro de Investigación Biomédica en Red Epidemiología y Salud Pública, Madrid, Spain
6 Data & AI, Filament Consultancy Group., London, United Kingdom
7 Cancer Registry and Pathology Department, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Spain
8 Biomedical Sciences Department, University of Alcalá, Pharmacology Unit, Alcala de Henares, Spain
9 Immune System Diseases-Rheumatology and Internal Medicine Service, Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas, University Hospital Príncipe de Asturias, Alcala de Henares, Spain
10 Department of Psychiatry and Mental Health, Hospital Universitario Infanta Leonor, Madrid, Spain