Source:http://linkedlifedata.com/resource/umls/id/C1156020
GO: A process that results in a parallel arrangement of microtubules. [GOC:dph],NCI: It is the aggregated products of microtubules during mitosis where chromosomes line up prior to the segregation process. Many antineoplastic agents cause cytotoxicity by inducing microtubular bundle formation irreversibly. (NCI)