DAVID DRESSLER, PH.D.; HUNTINGTON POTTER
To the editor: Over the last few months we have reported experiments about the existence and nature of "transfer factor." These experiments were done both independently and jointly over a 10-month period by three people (1-3). Our preparation of biologically active material originally occurred with a success rate of 30% (20 successful preparations). More recently, however, since April 1974, no member of the group has been able to prepare active material.
This has led us to be concerned that our original positive results may not have been obtained by the procedures described. We leave it to the kindness of our
DRESSLER D, POTTER H. Transfer Factor: Warning on Uncertainty of Results. Ann Intern Med. 1975;82:279. doi: 10.7326/0003-4819-82-2-279_1
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Published: Ann Intern Med. 1975;82(2):279.
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