On 2014 Feb 01, Jan Tunér commented:

The treatment time is said to be 10 minutes per patient regardless of wound size. Wound size in the laser group was in the range 4-52 cm2 (average 12 cm2). With an average output power of 4 mW and a treatment time of 600 seconds (10 minutes), an energy of 2.4 joules were emitted from the laser in each session. If the whole wound area was treated, the dose (energy density) for the smallest wounds (4 cm2) must have been 0.6 J/cm2 and for the largest wounds (52 cm2) the dose was 0.046 J/cm2. As the stated dose was 1.96 J/cm2, something seem to be wrong. Further, according the manufacturer of the laser equipment (Irradia AB, Sweden), a GaAs laser with as low power as 4 mW has never been produced and a pulse frequency of 3800 Hz is not available with any of their equipment. Neither has a GaAs laser with a beam divergence of 70 mrad (collimated) been available.

On 2014 Feb 01, Jan Tunér commented:

The treatment time is said to be 10 minutes per patient regardless of wound size. Wound size in the laser group was in the range 4-52 cm2 (average 12 cm2). With an average output power of 4 mW and a treatment time of 600 seconds (10 minutes), an energy of 2.4 joules were emitted from the laser in each session. If the whole wound area was treated, the dose (energy density) for the smallest wounds (4 cm2) must have been 0.6 J/cm2 and for the largest wounds (52 cm2) the dose was 0.046 J/cm2. As the stated dose was 1.96 J/cm2, something seem to be wrong. Further, according the manufacturer of the laser equipment (Irradia AB, Sweden), a GaAs laser with as low power as 4 mW has never been produced and a pulse frequency of 3800 Hz is not available with any of their equipment. Neither has a GaAs laser with a beam divergence of 70 mrad (collimated) been available.