These L3 L4 Disc Bulge Causes Are Surprisingly Common In Teens

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These L3 L4 Disc Bulge Causes Are Surprisingly Common In Teens

"those / these" are determiners and are used before nouns to refer to a particular group of things / people, e.g. these people / those rules / those buildings. Update: 题主问的是What are those? 然后他.

L4-L5 Disc Bulge: Causes, Symptoms, Treatments.

Bulging Disc: causes, Symptoms & Treatments | Global Treatment Services ...