4, AIDS, AMNIOTIC, ANATOMY, ARTWORK, BABY, BIOLOGICAL, BIOLOGY, CONCEPT, CONCEPTS, CONCEPTUAL, CONGENITAL, CORD, DEVELOPMENT, EMBRYO, FERTILITY, FETAL, FETUS, FIRST, FOETAL, FOETUS, FULL, FUNICULUS, GROWTH, HEALTHCARE, HEALTHY, HIV, HUMAN, ILLUSTRATION, IMMUNODEFICIENCY, IN, INFANT, INFECTION, INTRANATAL, INTRAUTERUS, KATERYNA, KON, LENGTH, LIBRARY, LIFE, LIKENESS, MEDICAL, MEDICINE, NEW, OBSTETRICS, PLACENTA, PREGNANCY, REPRESENTATION, REPRODUCTION, SAC, SCIENCE, TRANSMISSION, TRANSPLACENTAL, TRIMESTER, UMBILICAL, UMBILICALIS, UTERO, UTERUS, VIRUS, WEEKS,