You will be shown the abstract of a medical clinical trial report. Your task is to extract all the findings from this report into a JSON array. Each finding should contain the following five elements:

- Intervention: The medical intervention being tested. This should be a text span copied from the input passage.
- Comparator: The baseline against which the intervention is being evaluated. This should be a text span copied from the input passage. If no comparator is reported, set to `null`.
- Outcome: The medical outcome whose effect is being measured. This should be a text span copied from the input passage.
- Effect: The effect of the intervention on the outcome, relative to the comparator. The effect should be one of the following three values: ("significantly increased", "significantly decreased", "no significant difference").
- Evidence: The evidence for the effect. This should be a text span copied from the input passage.

Please format your output as a JSON array. Each entry in the output should be an array containing the 5 elements listed above, in the following order: [<intervention>, <comparator>, <outcome>, <effect>, <evidence>].

For example, an output with two findings might read:
```
[["aspirin", "placebo", "headache severity", "significantly decreased", "Mean headache severity was significantly decreased in the aspirin group compared to the placebo group (p < 0.05)."], ["aspirin", "placebo", "weight loss", "no significant difference", "We did not observe any difference in weight loss between the group given aspirin relative to the control group"]]
```

There are 4 finding(s) in the abstract below. Please extract them. Output only the JSON array with these 4 findings. Do not include any additional text.

Abstract:
ABSTRACT.OBJECTIVES:: Conflicting results were reported about the effectiveness of Low level laser therapy on musculoskeletal disorders. The aim of this study was to investigate the effectiveness of 850‐nm gallium arsenide aluminum (Ga‐As‐Al) laser therapy on pain, range of motion and disability in subacromial impingement syndrome.

ABSTRACT.METHODS:: A total of 52 patients (33 females and 19 males with a mean age of 53.59±11.34 years) with subacromial impingement syndrome were included. The patients were randomly assigned into two groups. Group I (n = 30, laser group) received laser therapy (5 joule/cm2 at each point over maximum 5‐6 painful points for 1 minute). Group II (n = 22, placebo laser group) received placebo laser therapy. Initially cold pack (10 minutes) was applied to all of the patients. Also patients were given an exercise program including range of motion, stretching and progressive resistive exercises. The therapy program was applied 5 times a week for 14 sessions. Pain severity was assessed by using visual analogue scale. Range of motion was measured by goniometer. Disability was evaluated by using Shoulder Pain and Disability Index.

ABSTRACT.RESULTS:: In group I, statistically significant improvements in pain severity, range of motion except internal and external rotation and SPADI scores were observed compared to baseline scores after the therapy (p<0.05). In Group II, all parameters except range of motion of external rotation were improved (p<0.05). However, no significant differences were recorded between the groups (p>0.05).

ABSTRACT.CONCLUSIONS:: The Low level laser therapy seems to have no superiority over placebo laser therapy in reducing pain severity, range of motion and functional disability.

Findings:
[["Laser therapy (Group I)", "Placebo laser therapy (Group II)", "Severity of pain", "no significant difference", "In group I, statistically significant improvements in pain severity, range of motion except internal and external rotation and SPADI scores were observed compared to baseline scores after the therapy (p\u003c0.05). In Group II, all parameters except range of motion of external rotation were improved (p\u003c0.05). However, no significant differences were recorded between the groups (p\u003e0.05)."], ["Laser therapy (Group I)", "Placebo laser therapy (Group II)", "Shoulder Pain and Disability Index score", "no significant difference", "In group I, statistically significant improvements in pain severity, range of motion except internal and external rotation and SPADI scores were observed compared to baseline scores after the therapy (p\u003c0.05). In Group II, all parameters except range of motion of external rotation were improved (p\u003c0.05). However, no significant differences were recorded between the groups (p\u003e0.05)."], ["Laser therapy (Group I)", "Placebo laser therapy (Group II)", "Motion range", "no significant difference", "In group I, statistically significant improvements in pain severity, range of motion except internal and external rotation and SPADI scores were observed compared to baseline scores after the therapy (p\u003c0.05). In Group II, all parameters except range of motion of external rotation were improved (p\u003c0.05). However, no significant differences were recorded between the groups (p\u003e0.05)."], ["Laser therapy (Group I)", "Placebo laser therapy (Group II)", "Motion range", "no significant difference", "The Low level laser therapy seems to have no superiority over placebo laser therapy in reducing pain severity, range of motion and functional disability."]]