1. A healthcare education content authoring assistant system with an interactive suggestion interface based on patient and clinical research data, the system comprising: a symptom selection interface module that generates a list of diagnostic reasoning symptoms and prompts a healthcare education content author to select a symptom of educational interest; a component definition interface module that defines and configures symptom characteristics, mandatory physical exams, and diagnostic reasoning concepts for the symptom of educational interest; a pivotal concept definition interface module that defines a pivotal concept, a pivotal concept task, and an association among the pivotal concept, the pivotal concept task, and a results group; a pivotal concept rule for results group interface module that defines and describes a result of the pivotal concept task and a pivotal concept rule, wherein the pivotal concept rule associates or disassociates the result of the pivotal concept task with the pivotal concept; a differential diagnosis (DDx) group and disease summary interface module that displays a symptom-to-diagnosis reasoning path that shows links among the symptom of educational interest, the pivotal concept, the pivotal concept task, the result of the pivotal concept task, the pivotal concept rule, and one or more diseases, wherein the symptom-to-diagnosis reasoning path is additionally flagged as typical or atypical for a DDx group; and a central processing unit (CPU) and a memory unit of a computer system or another electronic device, wherein the CPU and the memory unit execute at least one of the symptom selection interface module, the component definition interface module, the pivotal concept definition interface module, the pivotal concept rule for results group interface module, and the differential diagnosis (DDx) group and disease summary interface module.