[1] Hosp 12 Octubre I 12, Res Inst, Madrid, Spain
[2] Camilo Jose Cela Univ, Madrid, Spain
[3] St Louis Univ, Dept Obstet Gynecol & Womens Hlth, St Louis, MO 63103 USA
[4] Univ Europea Madrid, Calle Tajo S-N, Madrid 28670, Spain
[5] Ctr Invest Biomed Red Fragilidad & Envejecimiento, Madrid, Spain