To schedule a DEF presentation for your DOBA chapter,

Call any of the individuals listed below:

USA:         + 1 856 366 3000 (Mr. Green E. Dim)
UK:           + 44 77 1 025 0222 (Dr. Chijioke Ojji)
Nigeria:  + 234 803 407 0213 (Sir Igweka G. Uche)