Bijani Twins: Has medical been breached or abused?

http://en.wikipedia.org/wiki/Ladan_and_Laleh_Bijani

For the people that wants background information of Bijani Twins

I personally think that medical has been breached. It is the twin who wanted to be separated and the doctor had already warned them on the risks and dangers they may face and they know that if the operation is not a success, they will die. It is not the doctor’s fault as they lost lots of blood during the operation and the Doctor had already warned them. A specially-designed chair was required that allowed the operation to be performed with both sisters in a sitting position.

The attempt to separate the twins turned out to be very difficult, because their brains not only shared a major vein (the superior sagittal sinus), but had fused together. The separation was achieved on July 8, 2003, but it was announced then that the twins were in critical condition, both having lost a large volume of blood due to complications of the operation.

I think that they should bear with each other and continue to line on.