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To the Editor:
—There is no clinical worker who has not at some time during his experience as an investigator had the misfortune to be unable to locate some particular patient in whom he is scientifically interested. At times this is a serious drawback in regard to the administration of new remedies (salvarsan being a good example), the effects of operative procedure, obscure cases for diagnosis or unusual cases seen only at the clinics, and so forth. In order to locate such cases, dependence must be placed in some hospital employee to look up the address given by the patient or the address of the nearest relative, if given, when he has failed to find that of the patient. The results by postal service are about as unsatisfactory, letters being promptly returned to the sender. These menus failing, the physician himself takes up the bunt. If fortune smiles on him,
White FW. The Control of the Clinic Patient. JAMA. 1912;LVIII(24):1871-1872. doi:10.1001/jama.1912.04260060220019