Response to *Nigella sativa* in Patients with Confirmed and Suspected COVID-19 by Issa Rasheed Fetian, Issa D Fitian, Lukas Villiger, Maged Darwish

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Flammer Syndrome in Aesthetic Medicine: The Importance of Recognizing Signs and Symptoms by Cigdem Kaya, Issa Rasheed Fetian, Lei Fand, Fabio Valeri, Maneli Mozaffarieh

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The Effect of Posture on Retinal Venous Pressure by Issa Rasheed Fetian, Franz Fankhauser, Michael Bärtschi, Fabio Valeri, Maneli Mozaffarieh, Hans Bebie, Josef Flammer

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"Bathtub" Shape is a Key Term for Interpreting the Course of Blood Glucose Curves by Issa Rasheed Fetian, Rytis Maziukas, Zuzana Pisarcikova, Stefan Zechmann, Matevc Dolinar, Sandra Dolinar, Lukas Villiger

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Optimizing Vitamin D Levels: A Real-World Analysis of Supplementation Efficacy and Patient Outcomes by Issa Rasheed Fetian, Brida Caviezel, Laura Szczypior, Eleni Sourla, Titus Baston, Anja Kuzmitski, Kathrin Peschke, Lukas Villiger

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Optimizing Vitamin D Levels: Bridging the Gap Between Theory and Practice for Optimal Health in Switzerland by Brida Caviezel, Laura Szczypior, Eleni Sourla, Titus Baston, Anja Kuzmitski, Kathrin Peschke, Issa Rasheed Fetian, Lukas Villiger

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