Johnson & Johnson may have found the defense it was looking for in the ongoing debate over the safety of talc-based products. A study of more than 250,000 women published in the Journal of the American Medical Association found no significant link between the use of powder in the genital area and risk of ovarian cancer among women. The prospective observational study collected data from four US-based studies that took place between 1976 and 2017, including The Nurses’ Health Study, The Nurs...