Z3A.2 - Weeks of gestation of pregnancy, weeks 20-29 Z3A - Weeks of gestation Z3A.2 - Weeks of gestation of pregnancy, weeks 20-29
Z3A.20 - 20 weeks gestation of pregnancy Z3A.21 - 21 weeks gestation of pregnancy Z3A.22 - 22 weeks gestation of pregnancy Z3A.23 - 23 weeks gestation of pregnancy Z3A.24 - 24 weeks gestation of pregnancy Z3A.25 - 25 weeks gestation of pregnancy Z3A.26 - 26 weeks gestation of pregnancy Z3A.27 - 27 weeks gestation of pregnancy Z3A.28 - 28 weeks gestation of pregnancy Z3A.29 - 29 weeks gestation of pregnancy