方法实际访查该家系所有成员，重绘家系谱图。
Methods: Interview and examine every member of the kindred, draw a new genealogy.
采用PCR-RFLP方法，对180例无血缘关系的健康中国汉族个体的360条染色体和6个家系18位成员的36条染色体进行检测。
PCR-RFLP was used to analyze 360 chromosomes from 180 Chinese unrelated healthy Han individuals, and the analysis of the genotypes of members in six families.
方法：调查包括先证者3代家系成员共计13人，检测血清甲状腺激素。
Methods: Thyroid hormone was detected in total 13 persons including the proband and his 12 relatives.
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