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 6 finding(s) in the abstract below. Please extract them. Output only the JSON array with these 6 findings. Do not include any additional text.

Abstract:
ABSTRACT.OBJECTIVES: Neck pain in chronic whiplash syndrome is a major burden for patients, healthcare providers and insurance companies. Randomized data on treatment of botulinum toxin in chronic whiplash syndrome are scarce. We conducted a randomized, placebo-controlled clinical trial to prove efficacy of botulinum toxin for neck pain in chronic whiplash syndrome.

ABSTRACT.METHODS: 40 patients with chronic whiplash syndrome (whiplash associated disorders grade 1 and 2) were randomly assigned to receive botulinum toxin (maximum 100 units) or placebo (saline) in muscles with increased tenderness.

ABSTRACT.RESULTS: After 12 weeks there was no significant difference between the two treatment groups in decrease of neck pain intensity on VAS (−7.0 mm, 95% confidence interval (CI) [−20.7 to +6.7]), mean number of neck pain days (−1%; 95% CI [−15% to +13%]), neck pain hours per day (−0.14; 95% CI [−3.0 to +2.7]), days on which symptomatic treatment was taken (−0.7%; 95% CI [−15% to +13%]) number of analgesics taken per day (−0.14; 95% CI [−0.6 to +0.4]) and total cervical range of motion (−11 degrees; 95% CI [−40 to +17]). There also was no significant difference in patient's assessment of improvement after week 4, 8 and 12.

ABSTRACT.CONCLUSIONS: Botulinum toxin was not proven effective in treatment of neck pain in chronic whiplash syndrome. Increased muscle tenderness alone might not be the major cause of neck pain in whiplash syndrome.

Findings:
[["botulinum toxin (maximum 100 units)", "placebo (saline)", "neck pain intensity", "no significant difference", "After 12 weeks there was no significant difference between the two treatment groups in decrease of neck pain intensity on VAS (\u22127.0 mm, 95% confidence interval (CI) [\u221220.7 to +6.7]),"], ["botulinum toxin (maximum 100 units)", "placebo (saline)", "mean number of neck pain days", "no significant difference", "mean number of neck pain days (\u22121%; 95% CI [\u221215% to +13%])"], ["botulinum toxin (maximum 100 units)", "placebo (saline)", "neck pain hours per day", "no significant difference", "neck pain hours per day (\u22120.14; 95% CI [\u22123.0 to +2.7]),"], ["botulinum toxin (maximum 100 units)", "placebo (saline)", "neck pain hours per day", "no significant difference", "After 12 weeks there was no significant difference between the two treatment groups in decrease of neck pain intensity on VAS (\u22127.0 mm, 95% confidence interval (CI) [\u221220.7 to +6.7]), mean number of neck pain days (\u22121%; 95% CI [\u221215% to +13%]), neck pain hours per day (\u22120.14; 95% CI [\u22123.0 to +2.7]"], ["botulinum toxin (maximum 100 units)", "placebo (saline)", "number of analgesics taken per day", "no significant difference", "After 12 weeks there was no significant difference between the two treatment groups in decrease of neck pain intensity on VAS (\u22127.0 mm, 95% confidence interval (CI) [\u221220.7 to +6.7]), mean number of neck pain days (\u22121%; 95% CI [\u221215% to +13%]), neck pain hours per day (\u22120.14; 95% CI [\u22123.0 to +2.7]), days on which symptomatic treatment was taken (\u22120.7%; 95% CI [\u221215% to +13%]) number of analgesics taken per day (\u22120.14; 95% CI [\u22120.6 to +0.4])"], ["botulinum toxin (maximum 100 units)", "placebo (saline)", "total cervical range of motion", "no significant difference", "After 12 weeks there was no significant difference between the two treatment groups in decrease of neck pain intensity on VAS (\u22127.0 mm, 95% confidence interval (CI) [\u221220.7 to +6.7]), mean number of neck pain days (\u22121%; 95% CI [\u221215% to +13%]), neck pain hours per day (\u22120.14; 95% CI [\u22123.0 to +2.7]), days on which symptomatic treatment was taken (\u22120.7%; 95% CI [\u221215% to +13%]) number of analgesics taken per day (\u22120.14; 95% CI [\u22120.6 to +0.4]) and total cervical range of motion (\u221211 degrees; 95% CI [\u221240 to +17])."]]