Table 1.
Eligibility criteria for articles included in the final review.
Table 2.
Excluded studies at the third round and explanation for exclusion.
Fig 1.
Flow diagram for article selection.
Table 3.
Summary of efficacy of various analgesic combinations of the included studies.
Fig 2.
Forest plot according to SPID6.
Fig 3.
Forest plot according to TOTPAR.
Table 4.
Summary of reported adverse effects of various analgesic combinations of the included studies.
(N.R. = Not Reported).