Tyler 1717 East Erwin Tyler, TX 75702 903-595-6113 Lab 903-595-6402 Fax 903-595-6113	Longview 707 West Cotton Longview, TX 75601 903-758-8245 Fax 903-758-8245	Texarkana 210 Beech St Texarkana, AR 71854 870-772-0013 Fax 870-772-0320

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