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}}</ref> Ammonia forms in diapers (nappies) after the urine is exposed to air. The circumcised Circumcised infant boys is are kept in ammoniacal diapers for many long hours, so the exposed meatus suffers and becomes inflamedfrom the action of the ammonia.<ref name="brenneman1921">{{REFjournal

}}</ref> This is highly suspect and deceptive because meatitis is a late complication that would be unlikely to develop until after the patients leave hospital and so would not be captured by hospital records.