Rene Colwell, 50, of New York, says "fish burps" turned her off to supplements after her 2006 heart attack, but she tries to take at least half of the four capsules her doctor recommended.

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That time the doctor arrived within two hours and recommended her family drive her to hospital in Perth, where she spent two days in the high dependency unit.

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Baber admits she has not started taking the fish oil capsules, which her doctor recommended, because she has a hard time swallowing them.

CNN: How fish oil supports heart health

If you have a more advanced testicular cancer or if you're unable to adhere closely to the recommended follow-up schedule, your doctor may recommend other treatments after surgery.

CNN: Testicular cancer

She advises consulting a good travel doctor for a list of recommended vaccines and medications (the International Society of Travel Medicine has a global directory online).

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The realization that a common behavior that had actually been touted by its manufacturers as doctor-recommended was killing people in large numbers represented a turning point for medicine.

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