BRAF and cancer: Davies Davies H H Bignell Bignell GR GR Cox Cox C C Mutations of the BRAF gene in human cancer Mutations of the BRAF gene in human cancer Nature Nature 2002 2002 417 417 6892 6892 949 949 954 954 10.1038/nature00766 10.1038/nature00766 12068308 12068308