The answers here published have been prepared by competent authorities.
They do not, however, represent the opinions of any official bodies unless specifically stated in the reply. Anonymous communications and queries on postal cards cannot be answered. Every letter must contain the writer's name and address, but these will be omitted on request.
QUERIES AND MINOR NOTES. JAMA. 1952;149(3):314–316. doi:10.1001/jama.1952.02930200100045
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