Objective To assess the aetiology of children with nonamblyoptic subnormal visual acuity using fundus examination and el目的通过眼底检查和视觉电生理检查,研究眼底内科门诊中学龄儿童非弱视性视力低于正常的病因。
Objective To detect the aging-related changes in electrophysiologic properties of pulmonary myocardial sleeves in dogs a目的对比研究老龄和成年犬肺静脉肌袖电生理特性。