1. Why do couples discontinue in vitro fertilization treatment
Why do couples discontinue in vitro fertilization treatment? a cohort study 
Catharina Olivius, B.Sc., Barbro Friden, M.D., Ph.D., Gunilla Borg, R.N., B.S., Christina Bergh, M.D., Ph.D. 
Fertility and Sterility 
Volume 81, Issue 2, Pages (February 2004)
DOI: /j.fertnstert

2. FIGURE 1
Presentation of outcome for the cohort of couples who started IVF treatment between January 1996 and December 1997.
Olivius. Discontinuation of IVF.Fertil Steril 2004.
Fertility and Sterility  , DOI: ( /j.fertnstert )