A questionnaire-based study on knowledge and attitude towards counterfeit medication among the doctors in tertiary care hospital - Yadav, Vijay; Budania, Navin; Mondal, Arka; Kumar, Naveen; Kumar, Ritesh; Kumar Bhardwaj, Vinod; Kumar Chhockra, Vijay; Garg, Nadish; Punia, Aditi; Sharma, Priyamvada (International journal of basic and clinical pharmacology, 2018)