instruction:
Indicate the presence of numerical data in the abstract (whether numerical data plays a key role in medical records), solely using the information from the abstract.
question:
Abstract: To study the relationship between lung weight and lymph flow, we used an in situ, isolated sheep lung preparation that allowed these two variables to be measured simultaneously. All lungs were perfused for 4.5 h at a constant rate of 100 ml X min-1 X kg-1. In control lungs, the left atrial pressure (Pla) was kept at atmospheric pressure. In experimental lungs, Pla was kept atmospheric except for a 50-min elevation to 18 mmHg midway through the perfusion. During this period of left atrial hypertension, pulmonary arterial pressure rose from 18 to 31 mmHg, lymph flow rose from 3 to 12 ml/h, and the lymph-to-plasma oncotic pressure ratio (pi L/pi P) fell from 0.7 to 0.48. After left atrial pressure was returned to control, pulmonary arterial pressure, lymph flow, and pi L/pi P all returned to control levels. The rate of weight gain after the return of left atrial pressure to control was also the same as that in the control group. However, during the period of left atrial hypertension 135 ml of fluid were filtered into the lung, and this large increase in lung weight remained after the pressure was lowered. The presence of this substantial excess lung water despite control values for vascular pressures, lymph flow, rate of weight gain, and pi L/pi P suggests that the absolute amount of lung water has little influence on the dynamic aspects of lung fluid balance. These results are consistent with a two-compartment model of the interstitial space, where only one of the compartments is readily drained by the lymphatics.
Question: Does the abstract contain any numerical data?
answer:
Yes

question:
Abstract: Fast arm movements involving the shoulder and elbow joints have been analysed in normal controls and in patients with Parkinson's disease. The subjects were requested to draw on a graphic tablet triangles and squares of different size and shape. The patients produced a larger number of EMG burst compared with controls. The movements were accurate, and each segment of the geometric figures was performed with a roughly straight trajectory, but the time necessary to trace the geometric figures and the pauses at the vertices were prolonged. We conclude that in Parkinson's disease the disability in generating two joint ballistic movements depends on a difficulty in running motor programmes for complex trajectories.
Question: Does the abstract contain any numerical data?
answer:
No

question:
Abstract: Polypoid epithelial tumors of the duodenum and ampulla of Vater are rarely diagnosed preoperatively without wide application of fiberoptic endoscopy. The symptoms are nonspecific. Only a high index of suspicion will lead to early diagnosis. Life-threatening complications and increased incidence of malignant transformations are associated with delayed diagnosis. This paper reviews 11 patients (nine previously unreported) with villous tumor of the ampulla of Vater and two with this neoplasm in the duodenum. It also reviews the important principles of management illustrated by the behavior of the tumors of these 11 patients compared to those of previous reports. For favorable results, all lesions must be excised in toto and evidence of invasive malignancy must lead to aggressive treatment whenever feasible.
Question: Does the abstract contain any numerical data?
answer:
Yes