4Scott JA, Binns CW. Factors associated with the initiation and du- ration of breasffeeding: a review of the literature [J]. Breastfeed Rev, 1999,7(1) :5-16.
5Thulier D, Mercer J. Variables associated with breastfeeding dura- tion[ J]. J Obstet Gynecol Neonatal Nurs, 2009,38 (3) :259-268.
6Giovannini M, Riva E, Banderali G, et al. Feeding practices of in- fants through the first year of life in Italy[ J]. Acta Paediatr, 2004, 93(4) :492-497.
8Geddes DT. Inside the lactating breast : the latest anatomy research [ J]. J Midwifery Womens Health, 2007,52 (6) :556-563.
9Jacobs LA, Dickinson JE, Hart PD, et al. Normal nipple position in term infants measured on breastfeeding ultrasound [ J ]. J Hum Lact, 2007,25 ( 1 ) :52-59.
10Sanches MT. Clinical management of oral disorders in breastfeeding [J]. J Pediatr (Rio J), 2004,80(5 Suppl) :S155-S162.
6Wang YS, Wu SY. The effect of exclusive breastfeeding on development and incidence of infection in infants J Hum Lact , 1996, 12, 27:30
7Wright AL, Bauer M, Naylor A et al. Increasing breastfeeding rates to reduce infant illness at the community level. Pediatrics, 1998, 101, 837 : 44
8Scariati PD, Grummer - Strawn LM, Fein SB. A longitudinal analysis of infant morbidity and extent of breastfeeding in the United States. Pediatrics, 1997, 99:5
9Duffy LC, Faden H, Wasielewski R et al. Exclusive breastfeeding protests against bacterial colonization and cay care exposure to otitis media. Pediatrics, 1997, 100:e7
10Von Kries, Koletzko B, Sauerwald T, yon Mutius et al.Breastfeeding and obesity: cross sectional study: Br Med J, 1999, 319:147