'Critical stage' in bid to separate Iranian twins

Neurosurgeons performing a dangerous operation to separate Iranian sisters joined at the head grappled today with rerouting a vein as thick as a finger that helps blood flow through the twins’ brains.

An international team of five neurosurgeons probed the brains of 29-year-old Ladan and Laleh Bijani as a crucial phase began in a historic operation expected to last two to four days, said a spokesman for Singapore’s Raffles Hospital.