Figure 4
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2288-11-161/MediaObjects/12874_2010_Article_672_Fig4_HTML.jpg)
Timmer-Score in Observational Studies. Timmer-score in observational studies-A comarison between oral and poster presentation in 2000 and 2008.
Timmer-Score in Observational Studies. Timmer-score in observational studies-A comarison between oral and poster presentation in 2000 and 2008.