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Seeing the light
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Correspondence: Theodora Bloom Theo.Bloom@cursci.co.uk
Genome Biology 2002, 3:spotlight-20020906-01 doi:10.1186/gb-spotlight-20020906-01
Published: 6 September 2002The diversity of circadian signalling mechanisms makes it hard to identify the key photopigments of mammalian circadian cycles.