<prompt> All are risk factors of esophageal squamous cell carcinoma except:GERDAchalasia cardiaAlcoholSmoking  <response>: GERD is risk factor for Adenocarcinoma esophagus Risk Factors for SCC Esophagus - Alcohol - Smoking - Zenkers diveicula - Achalasia cardia - Intake of Nitrites Nitrates Nitrosamine - Fungal toxins - HPV infections 16, 18, 31, 33 - Plummer- Vinson syndrome - Hot liquid ingestion - Tylosis Palmaris Plantaris - Deficiency of MO - Molybdenum Z - Zinc A -VITAMIN A - Bulimia nervosa 