TY - GEN AU - Robinson,A AU - Puck,M AU - Tennes,K TI - Letter: The 47,XXY karyotype SN - 0140-6736 PY - 1974///0823 KW - Child KW - Humans KW - Karyotyping KW - Male KW - Sex Chromosome Aberrations KW - diagnosis N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/s0140-6736(74)90708-9 ER -