Frequency of pain crises in sickle cell anemia and its relationship with the sympatho-vagal balance, blood viscosity and inflammation oleh Danitza Nebor, Andre Bowers, Marie-Dominique Hardy-Dessources, Jennifer Knight-Madden, Marc Romana, Harvey Reid, Jean-Claude Barthélémy, Vanessa Cumming, Olivier Hue, Jacques Elion, Marvin Reid, Philippe Connes, CAREST study group