Stutchfield P R, Modi N, Weindling A M
Regional Neonatal Unit, Liverpool Maternity Hospital.
Arch Dis Child. 1988 May;63(5):552-4. doi: 10.1136/adc.63.5.552.
The irradiance produced by phototherapy units in use on a neonatal unit was measured. The phototherapy tubes were found to decline at a variable rate. Heat shields used to decrease heat and evaporative losses in the very low birthweight infant reduce irradiance and may appreciably limit the effectiveness of phototherapy.