Which of the following is NOT a prominent example of an epidemiological study of occupational diseases?

Heart disease is often considered a multifactorial condition influenced by a variety of lifestyle and environmental factors, including genetics, diet, physical activity, and stress. While there have been studies examining the workplace risk factors associated with heart disease, it is not primarily classified as an occupational disease in the same way that conditions like asbestos-related diseases, byssinosis (brown lung), and coal workers' pneumoconiosis (black lung) are.

The other conditions mentioned are well-documented occupational diseases directly linked to specific workplace exposures. Asbestos exposure is a significant risk factor for mesothelioma and other lung diseases. Byssinosis is associated with cotton dust in the textile industry, while black lung disease results from coal mining. These conditions have clear epidemiological studies demonstrating their direct correlation with specific occupational exposures, whereas heart disease's broader and more complex causes make it a less prominent example in this context.