Diagnostic and Therapeutic Challenges. Issue 1 (January 2022) - Agarwal, Aniruddha; Marchese, Alessandro; Aggarwal, Kanika; Arora, Atul; Thattaruthody, Faisal; Sharma, Kusum; Sharma, Suryaprakash; Sharma, Aman; Gupta, Vishali; Basu, Soumyava