fig1
![Towards safe and efficient cervical dilatation](https://image.oaes.cc/7b600217-374f-4ecc-99f4-d3feba8744d1/2500.fig.1.png)
Figure 1. The triple balloon catheter - deflated balloons (cited from Weichselbaum and Stark[6] with permission)
Figure 1. The triple balloon catheter - deflated balloons (cited from Weichselbaum and Stark[6] with permission)
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