Corrigendum: Evaluation of N95 respirators on fit rate, real-time leakage, and usability among Chinese healthcare workers: study protocol of a randomized crossover trial - Lam, Simon Ching; Odetayo, Aderonke; Yu, Ignatius Tak Sun; So, Sony Nai Yeung; Cheung, Kin; Lee, Paul Hong; Suen, Lorna Kwai Ping (Frontiers in Public Health, 2024)