toxtools ，是一個完整的解決方案。 

The package provides modern, sophisticated modeling and estimation algorithms for fitting dose response data as part of a state-of-the- art suite of graphical and numeric analysis tools for toxicological risk assessment.該軟件包提供了現代的，先進的建模與估計算法擬合劑量反應數據，藝術的圖形和數值分析工具毒理學風險評估使該軟件大受歡迎。