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The best sonographic correlation in the diagnosis of an ectopic pregnancy is the combination of no intrauterine pregnancy and which one of the following?
Middle-Class
A social group between the working class and the upper class, often defined by moderate income levels and educational attainment.
Empiricism
A theory that states that knowledge comes only or primarily from sensory experience, emphasizing the role of experience and evidence in the formation of ideas.
Observations
The act of closely monitoring or noting phenomena or behaviors to gather information, often used in research and study.
A Theory
A coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation.
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