But there were some problems still existed in the clinical application of exogenous growth factors such as factor sources, cost, immune reaction, side effects and so on.
但临床应用外源性生长因子还存在着因子来源、费用及其免疫反应和副作用等问题。
Using AK model, this paper discusses the possibility of introducing institutional factors into growth model as exogenous variables.
本文利用简单的AK增长模型讨论了将制度做为外生因素引入增长模型的可能。
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