3Syftestad GT, Boelkins JN. Skeletal response of growing rats to continuous long - term hyperbaric helium - oxygen exposure[J]. Undersea Biomed Res, 1976, 3(4) :361 -368.
4Tashima L, Nakata M, Anno K. Prenatal influence of ischemia- hypoxia- induced intrauterine growth retardation on brain development and behavioral activity in rats[J ]. Biol Neonate, 2001, 80( 1 ): 81 -87.
5Rizzo G, Arduini D, Romanini C, Mancuso S. Effects of maternal hypemxygenation on atrioventricular velocity waveforms in healthy and growth - retarded fetuses[J]. Biol Neonate, 1990, 58 (3): 127-132.