[20]KEPLEY HO,OSTRANDER R. Family characteristics of anxious ADHD children.J Atten Disord,2007,10(3):317-323.

    [21]ERIKSSON P,ANKARBERG E,FREDREKSSON A. Exposure to nicotine during a defined period in neonatal life induces permanent changes in brain nicotinic receptors and in behaviour of adult mice.Brain Res,2000,853(1):41-48.

    [22]MARKS MJ,GRADY SR,COLLINS AC. Downregulation of nicotinic receptor function after chronic nicotine infusion.J Pharmacol Exp Ther,1993, 266(3):1 268-1 276.

    [23]SLOTKIN TA,LAPPIN SE,SEIDLER FJ. Impact of fetal nicotine exposure on development of rat brain regions: critical sensitive periods or effects of withdrawal? Brain Res Bull,1993,31(3-4):319-328.

    [24]丁香平,苏林雁 ......