Complex sentence: Cannon suffered hearing loss some time during her childhood or early adult years, sources vary on the time frame and actual cause, An Astronomer Who Measured The Stars By Doug West although it is sometimes attributed to scarlet fever.
Split into simpler sentences: Cannon suffered hearing loss some time during her childhood or early adult years. Sources vary on the time frame and actual cause, An Astronomer Who Measured The Stars By Doug West although it is sometimes attributed to scarlet fever.