Identifying subgroups of patients using latent class analysis: should we use a single-stage or a two-stage approach? A methodological study using a cohort of patients with low back pain
BMC Musculoskeletal Disorders
The Journal of Thoracic and Cardiovascular Surgery
Headache: The Journal of Head and Face Pain
British Journal of Sports Medicine
Emergency patients treated with naproxen and placebo had outcomes as good as or better than…