group	pain_free
treatment	yes
treatment	yes
treatment	yes
treatment	yes
treatment	yes
treatment	yes
treatment	yes
treatment	yes
treatment	yes
treatment	yes
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
treatment	no
control	yes
control	yes
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no
control	no