Columbia subject headings:
Harvard subject headings:
Biographies.
Carnivals--United States--20th century.
Couney, Martin, 1870-1950.
Exhibitions--United States--20th century.
Impostors and imposture--United States--Biography.
Incubators (Pediatrics)--United States--History.
Neonatal intensive care--Popular works.
Premature infants--United States.
Respiratory therapy for newborn infants--United States--History.
Princeton subject headings:
Carnivals--United States--20th century.
Couney, Martin, 1870-1950.
Exhibitions--United States--20th century.
Impostors and imposture--United States--Biography.
Incubators (Pediatrics)--United States--History.
Neonatal intensive care--Popular works.
Premature infants--United States.
Respiratory therapy for newborn infants--United States--History.