@article{weko_3760_1, author = "CHOU,Hsun-Hua and HAYAKAWA,Toshiyuki and DIAZ,Sandra and KRINGS,Matthias and INDRIATI,Etty and LEAKEY,Meave and PAABO,Svante and SATTA,Yoko and TAKAHATA,Naoyuki and VARKI,Ajit ", title = "Inactivation of CMP-N-acetylneuraminic acid hydroxylase occurred prior to brain expansion during human evolution", journal = "Proceedings of the National Academy of Sciences of the United States of America ", year = "2002", volume = "99", number = "18", pages = "11736--11741", month = "sep" }