\begin{thebibliography}{5}
\providecommand{\natexlab}[1]{#1}
\providecommand{\url}[1]{\texttt{#1}}
\expandafter\ifx\csname urlstyle\endcsname\relax
  \providecommand{\doi}[1]{doi: #1}\else
  \providecommand{\doi}{doi: \begingroup \urlstyle{rm}\Url}\fi

\bibitem[Gottschalk and Dunn(2005{\natexlab{a}})]{gottschalk2005A}
P.G. Gottschalk and J.R. Dunn.
\newblock The five-parameter logistic: A characterization and comparison with
  the four-parameter logistics.
\newblock \emph{Analytical Biochemistry}, 343:\penalty0 54--65,
  2005{\natexlab{a}}.

\bibitem[O'Connell et~al.(1993)O'Connell, Belanger, and Haaland]{oconnell1993}
M.A. O'Connell, B.A. Belanger, and P.D. Haaland.
\newblock Calibration and assay development using the four-parameter logistic
  model.
\newblock \emph{Chemometrics and Intelligent Laboratory Systems}, 20:\penalty0
  97--114, 1993.

\bibitem[Carroll and Rupert(1988)]{carroll1988}
R.J. Carroll and D.~Rupert.
\newblock \emph{Transformation and Weighting in Regression}.
\newblock Chapman \& Hall, New York, 1988.

\bibitem[Davidian and Haaland(1990)]{davidian1990}
M.~Davidian and P.D. Haaland.
\newblock Regression and calibration with nonconstant error variance.
\newblock \emph{Chemometrics and Intelligent Laboratory Systems}, 9:\penalty0
  231--248, 1990.

\bibitem[Gottschalk and Dunn(2005{\natexlab{b}})]{gottschalk2005B}
P.G. Gottschalk and J.R. Dunn.
\newblock Determining the error of dose estimates and minimum and maximum
  acceptable concentrations from assays with nonlinear dose-response curves.
\newblock \emph{Computer Methods and Programs in Biomedicine}, 80:\penalty0
  204--215, 2005{\natexlab{b}}.

\end{thebibliography}