Fluid may surround a fetus.Logical formLearned from6 sentences. (Sound waves) may create an image of a fetus.Logical formLearned from6 sentences. Images may pertain-to a fetus.Logical formLearned from6 sentences. A concept may pertain-to a fetus.Logical formLearned from6 sentences. A fetus can be weeks.Logical formLearned from6 sentences. Cells may pertain-to a fetus.Logical formLearned from6 sentences. Fetuses may start.Logical formLearned from6 sentences. Women can be pregnant with fetuses.Logical formLearned from6 sentences. (Ultrasound images) may pertain-to a fetus.Logical formLearned from6 sentences. Fetuses may experience pain.Logical formLearned from6 sentences. A fetus may be tested.Logical formLearned from6 sentences. A body may reject a fetus.Logical formLearned from6 sentences. Toxic effects can be on a fetus.Logical formLearned from6 sentences. A protein may be produced by a fetus.Logical formLearned from6 sentences. Teratogenic effects can be on a fetus.Logical formLearned from6 sentences.