When Ralph gives Alice the doctor's report she begins reading it out loud saying; "..a bald head". However, when Ralph reads the same report earlier he say; "...hair falling out."
Alice's mother's dog is named Ginger and is referred to as a female by Alice. But when Ralph later reads the doctor's report, the dog is clearly referenced as a male. In fact, Ralph probably wouldn't have thought the report was about him if it had referred to a "she" throughout.
While posing as a doctor, Norton said he attended PS 31 in Oyster Bay. There was no Oyster Bay within NYC limits at the time Norton would have gone to school.