I am a researcher interested in the ATBC Study. Please outline the key design elements of the study, including its primary purpose, the number of participants, and the intervention details. Additionally, list two types of questionnaires or forms used in the study, and identify the year of the earliest and latest publications in the ATBC Study Bibliography.
Navigate to 'https://dietandhealth.cancer.gov/atbc'. Click on the 'Study Details' link (ID 21). Identify the primary purpose of the study, the number of participants, and the intervention details (e.g., type of supplements, dosage, duration). Go back to the main navigation and click on the 'Questionnaires & Forms' link (ID 23). Identify and list two distinct types of questionnaires or forms mentioned on this page. Go back to the main navigation and click on the 'ATBC Study Bibliography' link (ID 25). Identify the year of the earliest publication listed in the bibliography. Identify the year of the latest publication listed in the bibliography. Synthesize all gathered information into a concise answer.
The agent successfully navigates to the 'Study Details' page and identifies the primary purpose (to determine if vitamin supplements prevented lung and other cancers), the number of participants (29,133 male smokers), and the intervention details (50mg vitamin E, 20mg beta-carotene, both, or placebo, daily for 5-8 years). The agent successfully navigates to the 'Questionnaires & Forms' page and lists two types of questionnaires/forms (e.g., Baseline Questionnaire, Food Frequency Questionnaire, Follow-up Questionnaires, Death Certificate Form, Cancer Form). The agent successfully navigates to the 'ATBC Study Bibliography' page and identifies the earliest publication year as 1987. The agent successfully navigates to the 'ATBC Study Bibliography' page and identifies the latest publication year as 2024.