Any and all parts of any hospital record or bill for treatment, or copy thereof, made by a hospital located without this state in connection with the treatment of a patient, if not otherwise inadmissible, shall be admissible in evidence without any preliminary testimony if there is attached thereto the certification in affidavit form of the person in charge of the record room of the hospital or his authorized assistant indicating that such record, bill or copy is the original record or bill or a copy thereof, made in the regular course of the business of the hospital, and that it was the regular course of such business to make such record or bill at the time of the transaction, occurrence or event recorded therein or within a reasonable time thereafter.