Diagnostic and Therapeutic Challenges. Issue 1 (January 2020) - Agarwal, Aniruddha; Aggarwal, Kanika; Sharma, Kusum; Sharma, Aman; Behera, Digambar; Sharma, Suryaprakash; Singh, Nirbhai; Gupta, Amod; Gupta, Vishali; Albini, Thomas