Serum cytokines in second trimester pregnancy and their relationship with spontaneous preterm births in the Ribeirão Preto and São Luiz cohorts. - Turra, Suzana Eggers; Damaso, Ênio Luis; Veiga, Eduardo Carvalho de Arruda; Cardoso, Viviane Cunha; Bettiol, Heloisa; Cavalli, Ricardo Carvalho (BMC Pregnancy & Childbirth, 2023)