  We present the RPA theory of the BEC-BCS crossover in an atomic Fermi gas
near a Feshbach resonance that includes the relevant two-body atomic physics
exactly. This allows us to determine the probability $Z$ for the dressed
molecules in the Bose-Einstein condensate to be in the closed channel of the
Feshbach resonance and to compare with the recent experiments of Partridge {\it
et al.} [cond-mat/0505353] with $^{6}$Li. We determine for this extremely broad
resonance also the condensate density of the dressed molecules throughout the
BEC-BCS crossover.
