Correspondence (letter to the editor): Trend gives cause for concern.
Christoph
C
Maier
Michael
M
Zenz
D002986:Clinical Trials as Topic / Q000941:ethics*; D016265:Conflict of Interest; D004345:Drug Industry / Q000941:ethics*; D004992:Ethics, Medical; D005858:Germany; D006801:Humans; D017594:Publication Bias; D012109:Research Support as Topic / Q000941:ethics*; D015871:Scientific Misconduct / Q000941:ethics*