Expression of Concern: Local vs. systemic administration of bisphosphonates in rat cleft bone graft: A comparative study

After this article [1] was published, concerns were raised regarding results presented in Figs 234.Specifically: The Fig 2A Control panel of this article [1] appears similar to the Fig 4a Control panel in [2], despite the articles reporting different ages of the rats included in these control groups. The Fig 3A Control 40X and 100X images of this article [1] appear similar to the Fig 5a Control 4X and 10X images in [2], despite the articles reporting different ages of the rats in these control groups. The number of animals in each group in Fig 1A and the S1Table appears different.