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.BACKGROUND: Intravenous fluid is recommended in international guidelines to improve patient post-operative symptoms, particularly nausea and vomiting. The optimum fluid regimen has not been established. This prospective, randomized, blinded study was designed to determine if administration of equivolumes of a colloid (hydroxyethyl starch 130/0.4) reduced post operative nausea and vomiting in healthy volunteers undergoing ambulatory gynecologic laparoscopy surgery compared to a crystalloid solution (Hartmann's Solution).

ABSTRACT.METHODS: 120 patients were randomized to receive intravenous colloid (N = 60) or crystalloid (N = 60) intra-operatively. The volume of fluid administered was calculated at 1.5 ml.kg-1 per hour of fasting. Patients were interviewed to assess nausea, vomiting, anti-emetic use, dizziness, sore throat, headache and subjective general well being at 30 minutes and 2, 24 and 48 hours post operatively. Pulmonary function testing was performed on a subgroup.

ABSTRACT.RESULTS: At 2 hours the proportion of patients experiencing nausea (38.2 % vs 17.9%, P = 0.03) and the mean nausea score were increased in the colloid compared to crystalloid group respectively (1.49 ± 0.3 vs 0.68 ± 0.2, P = 0.028). The incidence of vomiting and anti-emetic usage was low and did not differ between the groups. Sore throat, dizziness, headache and general well being were not different between the groups. A comparable reduction on post-operative FVC and FEV-1 and PEFR was observed in both groups.

ABSTRACT.CONCLUSIONS: Intra-operative administration of colloid increased the incidence of early postoperative nausea and has no advantage over crystalloid for symptom control after gynaecological laparoscopic surgery.

Findings:
[["Intravenous colloid", "Intravenous crystalloid", "Reduction in FVC, FEV-1, and PEFR after surgery", "no significant difference", ". A comparable reduction on post-operative FVC and FEV-1 and PEFR was observed in both groups."], ["crystalloid", "colloid", "Frequency of nausea", "significantly decreased", "At 2 hours the proportion of the patients experiencing nausea (38.2 vs 17.9%, P = 0.03) (Figure 2, Panel A) and the mean nausea score (1.49 \u00b1 0.3 vs 0.68 \u00b1 0.2, P = 0.028) (Figure 2, Panel B) and were increased in the colloid group compared to crystalloid respectively."], ["Intravenous colloid", "Intravenous crystalloid", "Nausea at 2 hours", "significantly increased", "At 2 hours the proportion of patients experiencing nausea (38.2 % vs 17.9%, P = 0.03) and the mean nausea score were increased in the colloid compared to crystalloid group respectively (1.49 \u00b1 0.3 vs 0.68 \u00b1 0.2, P = 0.028)."], ["Intravenous colloid", "Intravenous crystalloid", "Incidence of vomiting", "no significant difference", "The incidence of vomiting and anti-emetic usage was low and did not differ between the groups."], ["Intravenous colloid", "Intravenous crystalloid", "Sore throat, dizziness, cephalea, and general well being", "no significant difference", "Sore throat, dizziness, headache and general well being were not different between the groups."], ["Intravenous colloid", "Intravenous crystalloid", "Use of anti-emetic drugs", "no significant difference", "The incidence of vomiting and anti-emetic usage was low and did not differ between the groups."]]