Furthermore, one can notice that the amplitude of these  oscillations varies with the nodule depth, which means that these oscillations are not only dependent on  the probe's internal dynamics but also on the ones from the phantom."  ######   Submitted filename: Response to Reviewers.pdf  ######   Click here for additional data file.  00.0000/journal.pone.0000000.r000  Decision Letter 0  Ranzani  Tommaso  Academic Editor  © 0000 Tommaso Ranzani  0000  Tommaso Ranzani  This is an open access article distributed under the terms of the  Creative Commons Attribution License  , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.  0 