“We have to amplify what we saw at EBOVAC” – Assessing participant perceptions, attitudes, and acceptability of an ancillary care policy in an Ebola vaccine trial in the Democratic Republic of the Congo: A mixed methods study - Gwen Lemey; Ynke Larivière; Solange Milolo; Trésor Zola Matuvanga; Maha Salloum; Patrick Mitashi; Pierre Van Damme; Raffaella Ravinetto; Jean-Pierre Van geertruyden; Hypolite Muhindo-Mavoko; Vivi Maketa; Sibyl Anthierens (PLoS ONE, 2025)