Clinical therapeutic effects of gastrodin in combination with betahistine on vertigo: A protocol for systematic review and meta-analysis.

Background: Vertigo is a well-known presenting complaint common in the main care offices as well as departments. It is also regarded as a symptom of vestibular dysfunction and has been expressed as a feeling of motion, specifically rotational motion. As patients grow older, vertigo also becomes a commonly presenting complaint.

[Responses of soil phosphorus fractions and microorganisms to nitrogen application in a subtropical Phyllostachys pubescen forest].

Phosphorus (P) is an important nutrient for plant and microbial growth. Soil P availabi-lity is poor in subtropical areas. Long-term heavy nitrogen (N) deposition might further reduce P availability.