From the parmacoepi point of view, the best risk estimator is the relative risk (RR, event rate in exposed/event rate in non-exposed). This cannot be measured in case-controls studies, because the cases and the controls are independent, and the overall event rates are fixed by the cas/control ratio.
Bay of Campeche. Bay of Campeche, also called Gulf of Campeche, Spanish BahÃ­a de Campeche, bay of the Gulf of Mexico, southern Mexico. It is bounded by the YucatÃ¡n Peninsula to the east, by the Isthmus of Tehuantepec to the south, and by southern Veracruz to the west.
...Not so good for: Wrecks, non-diving activities... The Sea of Cortez, also known as the Gulf of California, is a 1,126 km stretch of water sheltered from the Pacific Ocean by the Baja California peninsula. As a result, the swells of the Pacific have little effect here meaning the seas are often flat calm.