1. Department of Dermatology, Venereology and Leprology, Government Medical College, Kollam, Kerala, India,
2. Department of Dermatology, Venereology and Leprology, Government Medical College, Alappuzha, Kerala, India,
3. Department of Paediatrics, Sree Avittam Thirunal Hospital, Government Medical College, Thiruvananthapuram, Kerala, India,
4. Department of Dermatology, Venereology and Leprology, Government Medical College, Thiruvananthapuram, Kerala, India,