I'm going to do some looking myself as well but I was wondering if anyone here had links to research papers (peer-reviewed) that show the benefits of breastfeeding. My FIL is driving me nuts. He's a PhD. in quantitative genetics and doesn't believe me when I say that there are benefits to breastfeeding. I've found articles in the past (and I'll pull them up again) but I'm getting ready for Christmas when I'm sure he'll want to challenge me again. Also, if anyone has any papers about CIO vs. non-crying sleep I would appreciate those too. TIA!