[1] Univ Claude Bernard Lyon 1, Hosp Civils Lyon, Hop Croix Rousse, Serv Med Interne, Lyon, France
[2] Hop Edouard Herriot, Serv Med Interne, Lyon, France
[3] Hop Croix Rousse, Serv Obstet, Lyon, France
[4] Hop Femme Mere Enfant, Serv Obstet, Lyon, France
[5] Hop Lyon Sud, Serv Rhumatol, Lyon, France
[6] Hosp Civils Lyon, Pole IMER, F-69003 Lyon, France
[7] Univ Claude Bernard Lyon 1, Univ Lyon, HESPER EA 7425, F-69008 Lyon, France