You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Recall bias is more common with and explain in detail?
When cases and controls are asked questions about their past history it may be more likely for the cases to recall the existence of ceain events or factors than the controls who are healthy. (refer pgno:73 park 23rd edition)