Browse our Health Library to learn about treatments, conditions, and how Cedars-Sinai can support your healthcare needs.

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2019 Novel Coronavirus (2019-nCoV)

2019 Novel Coronavirus (2019-nCoV) is a virus that causes a respiratory illness. Coronaviruses are a very common cause of bronchitis. They may sometimes cause lung infection (pneumonia).

24-Hour Probe Study

The 24-hour probe study measures the pH (acid level) in your food pipe (esophagus). For the 24-hour probe study, your health care provider will insert a thin tube into your nose. The tube goes down into your esophagus. The tube will have...

24-Hour Urine Collection

A 24-hour urine collection is a simple lab test that measures what’s in your urine. The test is used to check kidney function. Here's what you need to know.

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