Référence: Multilevel model to assess sources of variation in follicular growth close to the time of ovulation in women with normal fertility: a multicenter observational study
Mikolajczyk, Rafael T; Stanford, Joseph B; Ecochard, René Multilevel model to assess sources of variation in follicular growth close to the time of ovulation in women with normal fertility: a multicenter observational study. Reproductive Biology and Endocrinology : RB&E 2008: PMID: 19077200 PMCID: PMC2633009