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To the Editor:
—The reason for the absence of any of the extremities or parts of a newly born infant has for a long time been a matter of speculation, and from what I have been able to read there is little definite knowledge relative to the cause of deformities. The fact remains that prenatal influence has its advocates.A recent experience has led me to favor the prenatal impression theory, and I give it to you for what it may be worth.Both parents are healthy and have had very little sickness; their ages respectively are 35 and 32 years. The presentation and delivery were normal, but the child lacked both ears, only a roughening of the skin and a pin-point concavity being present at the usual site. The inferior maxilla receded an inch and a half, missing the bite that distance. The tongue was bifid, the left portion
Arnout JC. Prenatal Impressions. JAMA. 1912;LIX(1):52. doi:10.1001/jama.1912.04270070054024
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