Pretreatment with thyroxine (10-(8) parts by weight) enhances a ‘curative’ effect of homeopathically prepared thyroxine (10-(13)) on lowland frogs - Endler, P C; Lüdtke, R; Heckmann, C (Forsch Komplementarmed Klass Naturheilkd, 2003)
, et al.