Secondary use and scholarly impact of a portfolio of clinical trials with shared individual participant level data: cross sectional study - Erfan Taherifard; Maryam Mooghali; Hollin R Hakimian; Sahil R Mane; Mengyuan Fu; Stephen Bamford; Jesse A Berlin; Karla Childers; Nihar R Desai; Cary P Gross; Debbie Hewens; Richard Lehman; et al. (BMJ, 2026)