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.
Example: Abstract: Some patients converted from ventricular fibrillation to organized rhythms by defibrillation - trained ambulance technicians(EMT - Ds) will refibrillate before hospital arrival.The authors analyzed 271 cases of ventricular fibrillation managed by EMT - Ds working without paramedic back - up.Of 111 patients initially converted to organized rhythms, 19(17%) refibrillated, 11(58%) of whom were reconverted to perfusing rhythms, including nine of 11(82%) who had spontaneous pulses prior to refibrillation.Among patients initially converted to organized rhythms, hospital admission rates were lower for patients who refibrillated than for patients who did not(53 % versus 76% , P = NS), although discharge rates were virtually identical(37 % and 35 % , respectively).Scene - to - hospital transport times were not predictively associated with either the frequency of refibrillation or patient outcome.Defibrillation - trained EMTs can effectively manage refibrillation with additional shocks and are not at a significant disadvantage when paramedic back - up is not available. 
Question: Does the abstract contain any numerical data?
Example solution: Yes
Example explanation: As there are numerical figures and percentages (%), the answer is yes.

Problem: Abstract: Basic research has revealed that hydrophobic residues increased on the molecular surface of the denatured IgG and that the denatured proteins in the plasma can be removed by several sorbents of different amino acids bonded from polyvinylalcohol hydroxide residue with a covalent bond. Thus, an artificial reticulo-endothelial system was developed to supplement the human reticulo-endothelial system (RES) by removing denatured proteins from the patient's plasma. Clinically, angiitis and Raynaud's phenomenon associated with collagen disease such as systemic lupus erythematosus were remarkably reduced following a series of ARES treatments. The proteins adsorbed on the ARES were analyzed by two-dimensional electrophoresis. Virtually no albumin was detected, and IgG (constant isoelectric point), IgM, IgA, IgA dimer, C3, C4, fibrinogen and other unidentified spots were found in the elute from the ARES column. 
Question: Does the abstract contain any numerical data?

Solution: Yes