72-year-old Zhang Jizhong accompanied his wife for prenatal check-up and was praised as a model husband, and he was moved to tears by listening to the fetal heart rate during B-ultrasound. 72-year-old Zhang Jizhong accompanied his wife for prenatal check-up and was praised as a model husband, and he was moved to tears by listening to the fetal heart rate during B-ultrasound. 72-year-old Zhang Jizhong accompanied his wife for prenatal check-up and was praised as a model husband, and he was moved to tears by listening to the fetal heart rate during B-ultrasound. 72-year-old Zhang Jizhong accompanied his wife for prenatal check-up and was praised as a model husband, and he was moved to tears by listening to the fetal heart rate during B-ultrasound. 72-year-old Zhang Jizhong accompanied his wife for prenatal check-up and was praised as a model husband, and he was moved to tears by listening to the fetal heart rate during B-ultrasound. 72-year-old Zhang Jizhong accompanied his wife for prenatal check-up and was praised as a model husband, and he was moved to tears by listening to the fetal heart rate during B-ultrasound. 72-year-old Zhang Jizhong accompanied his wife for prenatal check-up and was praised as a model husband, and he was moved to tears by listening to the fetal heart rate during B-ultrasound. 72-year-old Zhang Jizhong accompanied his wife for prenatal check-up and was praised as a model husband, and he was moved to tears by listening to the fetal heart rate during B-ultrasound. 72-year-old Zhang Jizhong accompanied his wife for prenatal check-up and was praised as a model husband, and he was moved to tears by listening to the fetal heart rate during B-ultrasound. 72-year-old Zhang Jizhong accompanied his wife for prenatal check-up and was praised as a model husband, and he was moved to tears by listening to the fetal heart rate during B-ultrasound. 72-year-old Zhang Jizhong accompanied his wife for prenatal check-up and was praised as a model husband, and he was moved to tears by listening to the fetal heart rate during B-ultrasound.