The Effect of Very Advanced Maternal Age on Maternal and Neonatal Outcomes: A Systematic Review Leader J Bajwa A Lanes A Hua X Rennicks White R Rybak N Walker M Journal of Obstetrics and Gynaecology Canada Publisher: Elsevier Inc 2018 vol: 40 (9) pp: 1208-1218 Link: https://www.jogc.com/article/S1701-2163(17)30828-9/fulltext