For both, the study said, patterns of use and dependence are strongly influenced by factors like availability, price, regulations and social pressures, as well as pharmacological characteristics.

研究表明，对于这两类成瘾，使用方式及依赖度性受到诸如可获量、价格习惯、社会压力及药理特性等因素的影响。

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The pharmacological action, dose, security and stability of hirudin are summarized, and its availability is analyzed to provide some references for the relevant research.

从水蛭素药理作用、剂量及安全性、稳定性方面，对水蛭素的可利用性进行了分析，旨在为相关研究奠定基础。

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