References/Notes/Attributions:
Source
Morgan, B. J. T. (1992) Analysis of Quantal Response Data, London: Chapman \& Hall/CRC (Table 3.9, p. 117).
References
Notttingham, Q. J. and Birch, J. B. (2000) A semiparametric approach to analysing dose-response data, Statist. Med., 19, 389–404.