So sorry to hear this sad news. A great scientist and ophthalmologist with great and nice mind. True gentleman, kind teacher, and perfect cook. Love him and miss him, Likun Ai

Dear Alan Cris and I are thinking about you and supporting your strong personality in the choices you maid and still make. With sweet memories of a Sonoma birthday party and all wise advices in life and profession. Jan and Cris de Faber

Alan We are all pulling for you. You are now and always have been an important person to so many. I know you are proud of your children and I appreciate their making this communication link possible. Our little project is moving ahead but we need you.