Rivas-Vilchis, José F Vascular responses to manual PC6 acupuncture in nonsmokers and smokers assessed by the second derivative of the finger photoplethysmogram waveform. [electronic resource] - Journal of acupuncture and meridian studies Sep 2008 - 58-62 p. digital Publication Type: Journal Article ISSN: 2093-8152 Standard No.: 10.1016/S2005-2901(09)60009-1 doi Subjects--Topical Terms: Acupuncture PointsAcupuncture TherapyAdultBlood PressureCase-Control StudiesFemaleFingers--blood supplyHeart RateHumansMalePhotoplethysmographySmoking--physiopathology