I can understand why doctors said no but its totally wrong. even if they though the baby had no chance they could have helped!!!!
There is a petition you can sign about this to change the law to allow doctors to interviene in cases where babies are born under 23 weeks.
Please sign it here: Petition to: change the law to allow children born alive the right to life. | Number10.gov.uk
I've signed it. Please sign it too if you live in the UK.