Also, when multiple things can occur inside an element, the order of occurrence can be specified or left open, as needed.

另外，当在一个元素中可以出现多个事物时，还可以指定出现的顺序(或按照需要不指定)。

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Conclusion. This case report discusses the rare occurrence of multiple lumbar pedicle fractures and pars interarticularis (spondylolysis) fractures in a patient with osteopetrosis.

结论：本文就一例少见的复发性多处腰椎椎弓根骨折伴椎弓峡部骨折的石骨症病例的相关问题进行了讨论。

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Results 25 patients with different degrees of carotid artery atherosclerotic plaque formation, occurrence rate of 83.3%, of which single patch in 7 patients (28%), multiple plaque in 18 cases (72%).

结果25例患者颈动脉有不同程度的粥样硬化斑块形成，发生率为83.3%，其中单发斑块7例(28%)，多发斑块18例(72%)。

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Bundled payments link the payments that medical providers may receive for helping a patient over the course of treatment (called an episode of care), reducing the occurrence of multiple claims being made (and thus multiple payments).

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It is true that a spontaneous occurrence of the multiple system failures necessary to cause a severe accident and large radiological release is typically a very improbable event.

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The study used insurance claims data and couldn't tell when patients got CT scans of multiple parts of the body at the same time, a common occurrence.

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