1. Statistics relating to seven hundred births (white) occurring in the Philadelphia Hospital (Blockley) between 1865-72 Author(s): Hough, John Stockton, 1845-1900 author Publication: [Philadelphia?] : [publisher not identified], [1885?] Subject(s): Body SizeInfant, NewbornMaternal AgePhiladelphia
2. The age of women when the capacity for childbearing ceases Author(s): Barker, Fordyce, 1819-1891 author Publication: [Philadelphia?] : [publisher not identified], [1874] Subject(s): Maternal AgePregnancyAging
3. Las mejores edades para tener un hijo Publication: [S.l. : s.n., 19--?] Subject(s): Maternal AgePregnancy
