Comment on

• The cost of a successful delivery with in vitro fertilization.

  Neumann PJ, Gharib SD, Weinstein MC. Neumann PJ, et al. N Engl J Med. 1994 Jul 28;331(4):239-43. doi: 10.1056/NEJM199407283310406. N Engl J Med. 1994. PMID: 8015571
• The economic impact of multiple-gestation pregnancies and the contribution of assisted-reproduction techniques to their incidence.

  Callahan TL, Hall JE, Ettner SL, Christiansen CL, Greene MF, Crowley WF Jr. Callahan TL, et al. N Engl J Med. 1994 Jul 28;331(4):244-9. doi: 10.1056/NEJM199407283310407. N Engl J Med. 1994. PMID: 8015572