Request an invitation letter for your visa application. Feb 05, 2025 Please complete the form below to request an invitation letter to the Veterinary Biologics Training Program in Ames IA. You should receive your letter via email in a few days.Your full name *Please enter your full name as you want it to appear on the letter.Your Email Address *Your Job Title *Company or Institution *Please enter the company, university, ministry, or institution you work at.Additional Comments (not required) Send Message