10.1371/journal.pone.0209551.g004 Hiroaki Tanaka Hiroaki Tanaka Kazuhiro Ueda Kazuhiro Ueda Satoshi Watanuki Satoshi Watanuki Takashi Watari Takashi Watari Yasuharu Tokuda Yasuharu Tokuda Takashi Okumura Takashi Okumura Known ratio, grouped by years of post-graduate experience: The error bars shows the standard errors. Public Library of Science 2018 Other implication license examination decision support disease knowledge assessment sampling method test design disease vocabulary size diseases physicians linguistics field vocabulary assessment techniques vocabulary assessment paper-based tests self-assessment questionnaire future surveys 109 physicians decision support systems search engine 2018-12-27 18:30:55 Figure https://plos.figshare.com/articles/figure/Known_ratio_grouped_by_years_of_post-graduate_experience_The_error_bars_shows_the_standard_errors_/7526069 <p>Known ratio, grouped by years of post-graduate experience: The error bars shows the standard errors.</p>