Limit on $Br(b\to s g)$ in Two Higgs Doublet Models
  Using the recent CLEO measurement of $Br(b\to s \gamma)$, we find that the branching ratio of $b\to s g$ cannot be larger than $10\%$ in two Higgs doublet models. The small experimental value of $Br(b\to e\bar{\nu}X)$ can no longer be explained by charged Higgs boson effects. 
Chao-Qiang Geng, Paul Turcotte and Wei-Shu Hou