1. Ophthalmologist
  2. Dermatologist
  3. Paediatrician
  4. Cardiologist
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1 Answers

Answer: Option 2

The one word substitution is Dermatologist Ophthalmologist : who do treatment of disorders and diseases of the eye. Paediatrician : a medical practitioner specializing in children and their diseases. Cardiologist : medical practitioner specializing in diseases and abnormalities of the heart. Dermatologist : medical practitioner concerned with the diagnosis and treatment of skin disorders.

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