RT Journal Article SR Electronic T1 Maternal HLA Type and Fetal/Neonatal Alloimmune Thrombocytopenia JF AAP Grand Rounds JO AAP Grand Rounds FD American Academy of Pediatrics SP 55 OP 55 DO 10.1542/gr.44-5-55 VO 44 IS 5 YR 2020 UL http://aapgrandrounds.aappublications.org/content/44/5/55.abstract AB