1. Study reveals lung cancer hit non-smoker Indian earlier than westerners | WION WION
  2. Most of India's lung cancer cases are linked to non-smokers. Here's why Firstpost
  3. Lung cancer hits non-smoking Indians earlier than Westerners The Times of India
  4. Most lung cancer patients in India never smoked, genetic makeup big driver India Today
  5. Majority of lung cancer patients in India are non-smokers, startling study reveals WION

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