[1] Hosp Univ La Fe, Ctr Maternal, Dept Clin Pathol, Mol Biol Lab, Valencia 46009, Spain
[2] Hosp Univ La Fe, Ctr Maternal, Dept Hemathol, Valencia 46009, Spain
[3] Hosp Univ Puerta Mar Cadiz, Dept Hemathol, Cadiz 11009, Spain
[4] Hosp Univ Virgen Arrixaca, Dept Hemathol, Murcia 30120, Spain