Fig. 2: Number of articles included annually.
From: A quantitative analysis of the use of anonymization in biomedical research
The number of articles was normalized per 100,000 articles registered on PubMed in each year. Articles related to COVID-19 research are highlighted. Two regression lines with a 95% confidence interval, shown as two shaded areas, depict trends for the total number of articles (gray) and the number of articles without COVID-19 focus (green). Labels above the bars indicate the absolute number of included articles.
