Hi Dino!
Thank you for taking the time to view our oral report. We really appreciate it. Now, to answer your question, A leak occurring once the needle is withdrawn is expected. However, the researchers recommended a preventive measure to avoid this situation due to the fact that it can cause errors in the experiment and possibly introduce a bias to the results. Moreover, the leak could also cause the setup to be unusable or become unsuccessful.
Thank you for taking the time to view our oral report. We really appreciate it. Now, to answer your question, A leak occurring once the needle is withdrawn is expected. However, the researchers recommended a preventive measure to avoid this situation due to the fact that it can cause errors in the experiment and possibly introduce a bias to the results. Moreover, the leak could also cause the setup to be unusable or become unsuccessful.