Process evaluation of a hybrid effectiveness-implementation, pragmatic, cluster randomised controlled trial (IMPULSE) to improve psychosocial treatment of patients with psychotic-spectrum disorders in Southeast Europe - Tamara Pemovska; Nikolina Jovanović; Tamara Radojičić; Silvana Markovska Simoska; Fjolla Ramadani; Sanja Andrić Petrović; Emina Karamehić; Biljana Blazhevska Stoilkovska; Jon Konjufca; Stefan Jerotić; Alma Džubur Kulenović; Lidija Injac Stevović; et al. (PLoS ONE, 2026)