I need a research article written based on a study of vitamin D levels in colonoscopy patients. All data is available. The article should include: – Introduction – Methods – Results It should follow a standard academic format. The primary focus of the study is a general analysis of vitamin D levels in the population. Ideal skills and experience: – Experience in academic writing and research articles – Strong understanding of research methodology – Ability to present data clearly and concisely – Background in health sciences or related field