Study	Reason for exclusion
Bozkurt 2006	Compares pharmacological treatment versus lumbar sympathectomy
Coscia 1972	Only one patient with Buerger's disease showing improvement of claudication after use of nicergoline orally. We were unable to identify the results for this single patient with Buerger's disease.
He 2007	The study is about a type of acupuncture treatment of Buerger's disease
Musial 1986	This study assessed the fibrinolytic activity of prostacyclin PGI2 and iloprost during 3 five‐hour infusions on three consecutive days
Reichert 1975	Non‐randomised for Buerger's disease
Steinorth 1967	No patients with Buerger's disease
Sun 1993	Compares a drug (prostaglandin) versus acupuncture and oral use of Rotundine/L‐Tetrahydropalmatine
Yang 2005	The study is about acupuncture treatment of Buerger's disease
Zelikovsky 1973	Only two patients with Buerger's disease with no differences in ischaemic ulcer and rest pain for the combined group of participants. Results were not presented by disease classification.