Passage of bacteriophage phi X 174 across the placenta in guinea pigs.
D000818:Animals; D010584:Bacteriophage phi X 174; D001435:Bacteriophages; D005260:Female; D006168:Guinea Pigs; D006801:Humans; D008431:Maternal-Fetal Exchange; D010920:Placenta; D011247:Pregnancy
BACTERIOPHAGE; MATERNAL-FETAL EXCHANGE