Laurent, Bertoletti, Sara, Quenet, Silvy, Laporte, Joan, Sahuquillo, Francisco, Conget, José, Pedrajas, Mar, Martin, Ignacio, Casado, Antonio Riera Mestre, Manuel, Monreal, Arcelus, Ji, Arcos, Mp, Ballaz, A, Barba, R, Barrón, M, Barrón Andrés, B, Blanco Molina, A, Bosco, J, Chaves, E, Cañas, I, Casado, I, Contra, A, Conget, F, de Miguel, J, del Campo, R, del Toro, J, Falgá, C, Fernández Capitán, C, Gabriel, F, Gallego, P, García Bragado, F, Gavín, O, Gómez, V, González, J, Gracia, V, Guil, M, Guillem, N, Gutiérrez, J, Hernández, L, Hernández Huerta, D, Jaras, Mj, Jiménez, D, Jiménez, S, Jiménez Gil, M, Lobo, Jl, Lecumberri, R, López Jiménez, L, Lorenzo, A, Macià, M, Madridano, O, Marchena, Pj, Martín, M, Martín Villasclaras JJ, Monreal, M, Morales, M, Morán, Lp, Nauffal, Md, Nieto, Ja, Núñez, Mj, Mascareño, Mc, Ogea, Jl, Otero, R, Pedrajas, Jm, Riera Mestre, A, Rodríguez Dávila MA, Román, P, Román Bernal, B, Roldán, V, Rosa, V, Royo, C, Ruíz, J, Ruiz Gamietea, A, Ruiz Giménez, N, Sahuquillo, Jc, Sánchez, R, Sánchez Muñoz Torrero JF, Soler, S, Soto, Mj, Tiberio, G, Tolosa, C, Trujillo, J, Uresandi, F, Valdés, M, Valle, R, Vela, J, Vida, G, Villalta, J, Zorrilla, V, Bertoletti, L, Bura Riviere, A, Debourdeau, P, Farge Bancel, D, Lamuraglia, M, Mahe, I, Merah, A, Quere, I, Babalis, D, Papadakis, M, Brenner, B, Barillari, G, Ciammaichella, M, Di Micco, P, Dalla Valle, F, Duce, R, La Regina, M, Maida, R, Orlandini, F, Pasca, S, Piovella, C, Poggio, R, Prandoni, Paolo, Quintavalla, R, Rota, L, Schenone, A, Tonello, D, Visonà, A, Zalunardo, B, Bosevski, M, Bounameaux, H, Malý, R, Hirmerova, J, Salgado, E., BMC, Ed., Groupe de recherche sur la thrombose (GRT (EA 3065)), Université Jean Monnet [Saint-Étienne] (UJM), Service de Médecine Thérapeutique, CHU Saint-Etienne-Hôpital Nord - Saint Etienne, Centre d'Investigation Clinique - Epidemiologie Clinique/essais Cliniques Saint Etienne, Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM), Department of Internal Medicine, Hospital Municipal de Badalona, Department of Pneumonology, Hospital Clínico Universitario Lozano Blesa, Hospital Clínico San Carlos, Hospital Universitario Infanta Sofía, Hospital Universitario Virgen de las Nieves, Institut d'Investigació Biomèdica de Bellvitge [Barcelone] (IDIBELL)-Hospital Universitari de Bellvitge-Hospital Duran i Reynals, Hospital Universitari Germans Trias I Pujol, The RIETE Investigators, Universitat de Barcelona, [Bertoletti,L, Quenet,S, Laporte,S] Thrombosis Research Group, EA3065, University Saint-Etienne, Saint-Etienne, France. [Bertoletti,L, Laporte,S] CIE3, INSERM, Saint-Etienne, France. Department of Therapeutic Medicine, CHU Saint-Etienne, Hôpital Nord, Saint-Etienne, France. [Sahuquillo,JC] Department of Internal Medicine, Hospital Municipal de Badalona, Barcelona, Spain. [Conget,F] Department of Pneumonology, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain. [Pedrajas,JM] Department of Internal Medicine, Hospital Clínico San Carlos, Madrid, Spain. [Martin,M] Department of Internal Medicine, Hospital Infanta Sofía, Madrid, Spain. [Casado,I] Department of Pneumonology, Hospital Universitario Virgen de las Nieves, Granada, Spain. [Riera-Mestre,A] Department of Internal Medicine, Hospital Univesitari de Bellvitge - IDIBELL, Barcelona, Spain. [Monreal,M] Department of Internal Medicine, Hospital Universitari Germans Trias I Pujol, Badalona, Spain., and Bayer Pharma AG for supporting this Registry. Bayer Pharma AG’s support was limited to the part of RIETE outside Spain