hardest crossword ever

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Across
  1. 7. WHAT ORGANISATION CAN BE USED FOR RESEARCH?
  2. 9. HOW CAN VUNERABLE PEOPLE BE PROTECTED FROM INFECTIONS?
  3. 10. how is the NHS funded?
  4. 11. HEALTHCARE
Down
  1. 1. WHAT CAN BE A LIFESTYLE FACTOR OF POOR HEALTH?
  2. 2. in 1940 which disease killed 1 in 20 children before the age of 1?
  3. 3. who created NHS? (sirname)
  4. 4. WHAT CAN BE HARMFUL THAT IS IN THE ENVIRONMENT
  5. 5. why was the nhs created?
  6. 6. breast screenings are an important way to diagnose what?
  7. 8. what does public health rely on?