Abstract: Disclosed herein are systems and methods for improving medical diagnoses and treatments, whether preventive or for a current condition, by healthcare professionals. The disclosed principles may be implemented in a computer-based system across a computer network to assist healthcare professionals in evaluating and treating patients. The disclosed principles provide a universal patient questionnaire that is dynamic with regard to the responses provided during patient interviews. In addition to standardized questions for all patients, the dynamic questionnaire adjusts its inquiries to each patient based on each patient's responses. The dynamic questionnaire gathers at least the minimum information needed to provide an accurate diagnosis for each patient. This ensure physicians that “best practices” for each set of medical facts is followed. It also creates accuracy and uniformity in physician diagnoses and treatment, especially for preventative care situations.

Abstract: An improved overhead projector which allows for automated feeding of transparencies from input and output trays positioned within a body of the projector. The feed mechanism is reversible to allow previously viewed transparencies to be repositioned over a light source on a table of the projector and seen on a display screen. The transparency trays include retractable mechanisms allowing them to be switched from receiving or delivering transparencies into a feed path. An optical projection head includes an adjustable mechanism to automatically reorient a projected image for transparencies in landscape or portrait views. The adjustable mechanism includes a first mirror which is adjustable to reflect light transmitted from the light source directly from the transparency toward the display screen, or to present a thin vertical profile allowing a light image to reflect off second and third mirrors before reflecting again off the first mirror and toward the display screen.