“…7,18,19 Twenty-two studies included only CuT380A IUDs, 8,16–18,20–37 13 included only LNG-IUS, 19,38–49 and nine included a mix of the two 7,9,10,14,50–54 ; the remaining four studies included CuT200 55–57 or Cu7 IUDs. 58 Twenty-eight studied women with IUDs placed only in the immediate postpartum period, 9,10,14,17,18,21,23,24,26–30,32–37,40–43,52–54,57,58 four studied only early postpartum placements, 44,47,55,56 and the remaining 16 studied more than one placement period. 7,8,16,19,20,22,25,31,38,39,45,46,48–50,51 Similar numbers of studies evaluated vaginal and cesarean deliveries, with 14 including only vaginal deliveries, 14,16,19,20,22,31,34,39,42,44,45,48,53,5816 including only cesarean deliveries, 7,8,17,18,27–30,35,37,38,40,41,43,46,54 16 including both delivery methods, 9,10,21,…”