TY  - GEN
AU  - Vargas López,E
AU  - Ruvalcaba Hernández,D
AU  - Martínez Elizondo,G A
TI  - [Obstetric aspects in patients over 40 years of age]
SN  - 0300-9041
PY  - 1980///0616
KW  - Cesarean Section
KW  - Congenital Abnormalities
KW  - epidemiology
KW  - Female
KW  - Humans
KW  - Infant, Newborn
KW  - Infant, Premature
KW  - Maternal Age
KW  - Mexico
KW  - Pregnancy
KW  - Pregnancy Complications
KW  - Prognosis
N1  - Publication Type: English Abstract; Journal Article
ER  -