We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Article |


Ellice McDonald, M.D.
JAMA. 1931;96(2):132. doi:10.1001/jama.1931.02720280050026.
Text Size: A A A
Published online


To the Editor:  —Dr. Coffey has repeatedly stated in the public press that he and Dr. Humber make no claim for a cure, yet in the United States patent number 1771976, signed by Walter B. Coffey and John D. Humber, there is the following opening statement: "Our invention relates to a therapeutic substance having the property of stabilizing tissue growth and which, by virtue of this property, is capable of controlling and/or destroying carcinoma, sarcoma and other malignancies." Obviously these two statements are contradictory.This patent claims that the Coffey-Humber extract is an adrenal cortex extract, stabilizing growth, and that it controls or destroys cancer. These claims may be easily proved untrue. First, there is no possibility of this water and alcohol cortex extract being an effective hormonal extract, as this method of preparation cannot produce an adrenal cortex extract which can substitute for the cortical hormone in adrenalectomized animals.


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

First Page Preview

View Large
First page PDF preview




Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.