Erratum to “Animal models for studying homeopathy and high dilutions: Conceptual critical review” [Homeopathy 99 (2010) 37–50]

The published Table 1 of this article could be misinterpreted. Section 17 of the table: ‘Animals: amphibian metamorphosis & thyroxin or thyroidinum’ links Guedes et al. to Endler et al. However the dilution of thyroxine in question (10⁻³⁰) had been used by Zausner et al. The table below gives further details.

Reference	Model	Species	Treatment	Variables measured	Blinding	Control	Randomization	Statistics adequate?	Results	Comments
Tissue growth and differentiation
Endler et al. 45	Metamorphosis	Frog	T4 1:108 (iso-endopathy)	Metamorphosis rate	Yes	Succussed vehicle	Yes	Yes	+	3-centric study with convergence of results in 2 labs
Zausner et al. 41	Metamorphosis	Frog	T4 1:1030 (iso-endopathy)	Metamorphosis rate	Yes	Succussed vehicle	Yes	Yes	+	3-centric study with high convergence of results
Guedes et al. 44	Metamorphosis	Frog	Thyroid 1:1026 (iso-endopathy)	Metamorphosis rate	Yes	Unsuccussed control	Yes	Yes	+	Convergence of results with those from Zausner et al. 2002