?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=F&rft.aulast=Kloprogge&rft.au=Kloprogge%2C+F&rft.date=July+2021&rft.atitle=Exploring+a+combined+biomarker+for+tuberculosis+treatment+response%3A+protocol+for+a+prospective+observational+cohort+study&rft.title=BMJ+Open&rft.issue=7&rft.volume=11&rft.genre=article