Family_ID STUDY_ID New_Family_ID New_STUDY_ID FAM1 ID101 1 1 FAM1 ID102 1 2 FAM1 ID201 1 3 M012 205HG 2 1 M012 ID309 2 2 M012 ID2999 2 3 M012 ID9203 2 4 S230 LF6950 3 1