Challenges to human papillomavirus vaccination among young girls in Morocco: A national cross-sectional study - Touria Essayagh; Meriem Essayagh; Housnia Slibani; Soukayna El Hachimi; Kaoutar Nmila; Khaoula Addakiri; Rehmatullah Zadran; Sanah Essayagh (PLoS ONE, 2026)