Answer: By forming a scientific hypothesis or scientific research question.
Step-by-step explanation:
Scientific method can be define as the step by step process for the purpose of experimentation, observation and concluding the results. This involves making an observation, framing a hypothesis based on the observation, testing a hypothesis by experimentation, concluding the data obtain after the experiment.
In the given situation a hypothesis can be framed on the basis of the knowledge of the medical professional on a particular subject or topic. This can also be based upon concepts of the previous research.