Given a passage classify if the passage has a definite objective/aim/goal or not. Output '1' if the passage has a defininte objective/aim/goal and output '0' if the passage does not have a definite objective/aim/goal.
Q: The aim of this study was to analyse changes in levels of memory T-lymphocytes during growth of SL2 tumours in DBA/2 mice and to evaluate whether these lymphocytes may have an inhibitory effect on tumour growth.', 'Percentages of naive (CD8+CD44lowCD62L+), central memory (CD8+CD44high CD62L+) and effector memory (CD8+CD44highCD62L-) lymphocytes in the CD8+ subset in peripheral blood, spleen and lymph nodes of tumour-bearing and control mice were analysed by flow cytometry.', 'The percentage of effector memory lymphocytes in the CD8+ subset increased during growth of tumours, whereas that of naive CD8+ lymphocytes decreased. No correlation between the levels of effector memory lymphocytes in peripheral blood and the mass of tumours was found.
A:
0