Male fetal sex is associated with low maternal plasma anti-inflammatory cytokine profile in the first trimester of healthy pregnancies

David Ramiro‐Cortijo, María de la Calle, Rainer H. Böger, Juliane Hannemann, Nicole Lüneburg, María Rosario López‐Giménez, Pilar Rodríguez‐Rodríguez, María Á. Martín-Cabrejas, Vanesa Benítez, Ángel L. López de Pablo, M. Carmen González, Silvia M. Arribas