Dorothy Vaughan Mary Jackson Katherine Johnson

BBC Health

• Bionic 3D-printed arm 'gives confidence' to young amputees
  Open Bionics has developed the world's first medically-certified 3D-printed artificial arm
• Nichola has created an app to help others with alopecia meet new friends
  Nichola, who’s had alopecia for fifteen years, has launched an app to help others with the condition make friends.
• Vicky Phelan: The woman who exposed an Irish health scandal
  Vicky Phelan exposed a health scandal in Ireland after discovering her smear test for cervical cancer had been misread.