AUTHOR=Vergne Timothée , Drewe Julian TITLE=Editorial: Quantifying and Addressing Bias Associated With Imperfect Observation Processes in Epidemiological Studies JOURNAL=Frontiers in Veterinary Science VOLUME=6 YEAR=2019 URL=https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2019.00310 DOI=10.3389/fvets.2019.00310 ISSN=2297-1769