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A comment on the recently published article (PRL 79, 3166 (1997)) is given.The issue is if there is a unique self-consistent way in determining theeffective medium in a random medium. The recently introduced effective mediumtheory (PRL 75, 3442 (1995)) based on the principle of energy densityhomogenization is also discussed.

Comment on “Energy Velocity of Diffusing Waves in Strongly Scattering Media”