Study	Reason for exclusion
Blick 1980	A variety of abscesses were presented with only 3/80 puerperal abscesses.
Edino 2001	Prospective study.
Florey 1946	This is not a comparative study, it looks at cases that presented and were treated.
Ozseker 2008	Case series.
Peters 1991	No comparator group.
Sheih 2009	Non probability convenience sampling and different outcomes for intervention and comparator groups.
Strauss 2003	Retrospecitve case series, not a clinical trial.
Tewari 2006	No comparator group, descriptive study.
Wang 2013	No comparator group, descriptive study.