TY - GEN AU - NICHOLAS,J W AU - JENKINS,W J AU - MARSH,W L TI - Human blood chimeras a study of surviving twins SN - 0007-1447 PY - 2002///0501 KW - Animals KW - Blood Group Antigens KW - Chimera KW - Humans KW - Twins N1 - Publication Type: Journal Article UR - https://doi.org/10.1136/bmj.1.5033.1458 ER -