Rosato, E The combination of laser Doppler perfusion imaging and photoplethysmography is useful in the characterization of scleroderma and primary Raynaud's phenomenon. [electronic resource] - Scandinavian journal of rheumatology 2011 - 292-8 p. digital Publication Type: Journal Article ISSN: 1502-7732 Standard No.: 10.3109/03009742.2010.530293 doi Subjects--Topical Terms: AdultBlood Volume--physiologyCapillaries--physiologyCase-Control StudiesFemaleHand--blood supplyHumansMaleMiddle AgedNails--blood supplyPerfusion Imaging--methodsPhotoplethysmography--methodsRaynaud Disease--physiopathologyRegional Blood Flow--physiologyScleroderma, Systemic--physiopathology