The study involves fewer data indicators and the included literature does not specify the control and treatment of selected asthma patients, which may cause the results to be biased.
The study involved fewer data indicators and included in the literature did not specify the control and treatment of selected asthma patients, which may lead to biased results.
There are few data indicators involved in the study, and the control and treatment of selected asthma patients are not specified in the included literature, which may lead to bias in the results.