Recruiting patients into a healthcare services trial: lessons learned from a feasibility study to investigate a patient-oriented navigation intervention for age-associated diseases. - Gödde, Kathrin; Fügemann, Hella; Grittner, Ulrike; Kohl, Raphael; Meisel, Andreas; Reinhold, Thomas; Rieckmann, Nina; Schnitzer, Susanne; Deckert, P. Markus; Frost, Nikolaj; Nolte, Christian H.; Schreiber, Stephan J.; et al. (BMC Health Services Research, 2025)