Dietitian-led intervention to manage constipation in Parkinson’s disease: Study protocol for a parallel-group randomized controlled trial (NUTRI-GUT-PD) - Juliana Heitich Brendler; Khadija Younes da Silva; Valesca Dall’Alba; Andreza Francisco Martins; Daniel Teixeira-dos-Santos; Artur Francisco Schumacher Schuh; Maira Rozenfeld Olchik (PLoS ONE, 2026)