June 24, 2004 article Open access Complex interventions: how “out of control” can a randomised controlled trial be? BMJ DOI: 10.1136/bmj.328.7455.1561 Full text (OA) OpenAlex Authors 0 Author list not loaded yet. Cited by 2 stored of 1,237 Search Sort Most cited Newest Oldest Patent citations Title Any typearticle review book-chapter conference-paper preprint dissertation book dataset other Any fieldAgricultural and Biological Sciences Arts and Humanities Biochemistry, Genetics and Molecular Biology Business, Management and Accounting Chemical Engineering Chemistry Computer Science Decision Sciences Dentistry Earth and Planetary Sciences Economics, Econometrics and Finance Energy Engineering Environmental Science Health Professions Immunology and Microbiology Materials Science Mathematics Medicine Neuroscience Nursing Pharmacology, Toxicology and Pharmaceutics Physics and Astronomy Psychology Social Sciences Veterinary Open access Lessons learned from a trial on integrated and proactive care for patients with complex needs (Hotspotters project): a process evaluation 2026 medRxiv preprint Health Professions Health Policy Implementation Science Open access 0 citations Improving cardiovascular population risk in primary care: protocol for the PROSPERA cluster-randomized controlled trial of a complex multilevel intervention 2026 medRxiv preprint Medicine Health Promotion and Cardiovascular Prevention Open access 0 citations 2 results References 0