. "scientific article published on 01 October 1997"@en . "A Voultsios" . "\u043D\u0430\u0443\u043A\u043E\u0432\u0430 \u0441\u0442\u0430\u0442\u0442\u044F, \u043E\u043F\u0443\u0431\u043B\u0456\u043A\u043E\u0432\u0430\u043D\u0430 \u0432 \u0436\u043E\u0432\u0442\u043D\u0456 1997"@uk . "Salivary melatonin as a circadian phase marker: validation and comparison to plasma melatonin"@nl . . . "5" . . "Salivary melatonin as a circadian phase marker: validation and comparison to plasma melatonin"@en . "art\u00EDculu cient\u00EDficu espubliz\u00E1u n'ochobre de 1997"@ast . "wetenschappelijk artikel"@nl . "Salivary melatonin as a circadian phase marker: validation and comparison to plasma melatonin"@nl . . . . "10.1177/074873049701200507" . . "457-466" . "Salivary melatonin as a circadian phase marker: validation and comparison to plasma melatonin"@en . "1997-10-01T00:00:00Z"^^ . "12" . . . "Salivary melatonin as a circadian phase marker: validation and comparison to plasma melatonin"@nl . . . "Salivary melatonin as a circadian phase marker: validation and comparison to plasma melatonin"@en . . "D J Kennaway" . "Salivary melatonin as a circadian phase marker: validation and comparison to plasma melatonin"@en . . . . "im Oktober 1997 ver\u00F6ffentlichter wissenschaftlicher Artikel"@de . . "9376644" . "article scientifique publi\u00E9 en 1997"@fr . .