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Pediatric Cardiology|August 13, 2005
Intrapericardial bronchogenic cyst overriding the pulmonary arteryL L Somwaru, F M Midgley, G B Di RussoBritish Poultry Science|July 13, 2000
Ultraviolet radiation and laying pulletsP D Lewis, G C Perry, T R MorrisBritish Poultry Science|March 1, 1996
Effect of 5 hour increases in photoperiod and in feeding opportunity on age at first eggP D Lewis, G C Perry, T R MorrisBritish Poultry Science|May 1, 1996
Effects of changes in photoperiod and feeding opportunity on the performance of two breeds of laying henP D Lewis, G C Perry, T R MorrisBritish Poultry Science|May 1, 1997
Effect of size and timing of photoperiod increase on age at first egg and subsequent performance of two breeds of laying henP D Lewis, G C Perry, T R MorrisBritish Poultry Science|May 6, 1998
A model for the effect of constant photoperiods on the rate of sexual maturation in pulletsP D Lewis, T R Morris, G C PerryPoultry Science|September 3, 1999
Light intensity and age at first egg in pulletsP D Lewis, T R Morris, G C PerryBritish Poultry Science|March 1, 1995
Effect of photoperiod on the mean oviposition time of two breeds of laying henP D Lewis, G C Perry, T R MorrisBritish Poultry Science|December 1, 1996
Effect of constant and of changing photoperiods on age at first egg and related traits in pulletsP D Lewis, G C Perry, T R MorrisBritish Poultry Science|March 25, 1998
Responses of immature pullets to repeated cycles of gradual increases and abrupt decreases in photoperiodP D Lewis, G C Perry, T R MorrisPageof 30