Up to 6,000 children who normally would have been referred to social services in Greater Manchester have potentially been missed during lockdown.Social care professionals are calling for a change in approach to tackle the ‘hidden harm’ faced by children who are stuck at home with abusive family members while schools remain closed.Alison Alexander, the CEO of children’s services support organisation Cornerstone, said referrals have dropped in many parts of the UK by 50pc, and by up to 75pc in