The issue focused on cancer treatment for pregnant women that led to four deaths and 40 injuries in patients over 20 weeks of pregnancy

Prof Kelly Lin from Queen Mary University Medical Centre and Professor Jeremy Holmes from Queen Mary University Medical Centre say they don't believe any sort of intervention will stop patients getting pregnant or raising children with cancer.

They point out that using treatments like chemotherapy for breast cancer can cause permanent problems for women who don't want to live with their partner's cancer.

Mr Holmes says one important