. . . "Evaluation of heart rate changes: electrocardiographic versus photoplethysmographic methods"@en . "1997-04-01T00:00:00Z"^^ . "Evaluation of heart rate changes: electrocardiographic versus photoplethysmographic methods"@en . . "art\u00EDculu cient\u00EDficu espubliz\u00E1u n'abril de 1997"@ast . . . "scientific article published on 01 April 1997"@en . . "2" . "P A Low" . . . "Evaluation of heart rate changes: electrocardiographic versus photoplethysmographic methods"@en . . "I R Zimmerman" . . "Evaluation of heart rate changes: electrocardiographic versus photoplethysmographic methods"@nl . . "T L Opfer-Gehrking" . . . . "Evaluation of heart rate changes: electrocardiographic versus photoplethysmographic methods"@nl . "7" . . "article scientifique publi\u00E9 en 1997"@fr . . . "wetenschappelijk artikel"@nl . "\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 \u0443 \u043A\u0432\u0456\u0442\u043D\u0456 1997"@uk . "P C O'Brien" . . "10.1007/BF02267748" . . . "65-68" . . . . "im April 1997 ver\u00F6ffentlichter wissenschaftlicher Artikel"@de . "Evaluation of heart rate changes: electrocardiographic versus photoplethysmographic methods"@nl . "Evaluation of heart rate changes: electrocardiographic versus photoplethysmographic methods"@en . . . "9174652" .