9 Downloadable chatbot software for simulating conversations; Downloadable chatbot software allowing users to ask health-related questions and obtain answers; Downloadable chatbot software allowing users to ask health-related questions and receive citations to scientific papers; Downloadable software in the nature of a mobile application allowing users to ask health-related questions and obtain answers; Downloadable software in the nature of a mobile application allowing users to ask health-related questions and receive citations to scientific papers