Contact the nearest Kingdom Hall of Jehovah's Witness'. They have excellent material on the subject. Especially the 32 page brochure "How can blood save your life." Another is a 4 page letter/brochure "Blood Transfusion- Why Not for Jehovah's Witnesses?" It is addressed:
"To Members of the Medical Proffession:" The official website for the JW's is "Watchtower.org"
Here you'll find a video you can watch titled: "Transfusion-Alternative Strategies. Simple, Safe, Effective." Who better than JW's official web site to answer your questions?