Retraction Note: Do Zinc Supplements Enhance the Clinical Efficacy of Hydroxychloroquine?: A Randomized, Multicenter Trial

Affiliations

• ¹ Tropical Medicine and Infectious Diseases Department, Faculty of Medicine, Tanta University, El-Giash Street, Tanta, 31527, Egypt.
• ² Public health and Community Medicine, Menoufia University, Menoufia, Egypt.
• ³ Tropical Medicine and Gastroenterology Department, Faculty of Medicine, Assiut University, Assiut, Egypt.
• ⁴ Internal Medicine Department, Ain-shams University, Cairo, Egypt.
• ⁵ Department of Anesthesia, Surgical Intensive Care and Pain Medicine, Faculty of Medicine, Tanta University, Tanta, Egypt.
• ⁶ Department of Internal Medicine, Al-Azhar University, Cairo, Egypt.