Du, Minquan Li, Leitao Jiang, Han Zheng, Yuqiao Zhang, Jing Additional file 1 of Prevalence and relevant factors of halitosis in Chinese subjects: a clinical research The self-administered questionnaire for this study. (DOCX 17 kb) Halitosis;Relevant factors;Oral health status;Tongue coating 2019-03-13
    https://springernature.figshare.com/articles/journal_contribution/Additional_file_1_of_Prevalence_and_relevant_factors_of_halitosis_in_Chinese_subjects_a_clinical_research/7843100
10.6084/m9.figshare.7843100.v1