Fixed Drug Eruptions Due To/Caused by Levocetirizine and Cetirizine: An Uncommon Adverse Cutaneous Drug Reaction to Commonly Used Piperazine Derivatives - Mehul Tyagi; Rhea Ahuja; Varniraj Patel; Kanika Sahni; Neha Taneja; Somesh Gupta (Wolters Kluwer Medknow Publications, 2024)