Telimaa 1988(b).

Methods	Random allocation. Method not described
Participants	Endometriosis on laparoscopy, infertility duration was unspecified.
Interventions	Danazol 600 mg daily for 6 months, n=18 patients randomised and included versus placebo daily for 6 months, n=14 patients randomised and included.
Outcomes	Clinical pregnancy as above.
Notes	Up to 30 months post‐treatment, 3‐arm trial as above. Funding: drugs supplied by Farmos Group Ltd Turku, Finland. No details of power calculation or ITT. Note that this is the same study as Telimaa 1988 (a).
Risk of bias
Bias	Authors' judgement	Support for judgement
Adequate sequence generation?	Unclear risk	'Randomly allocated' no further details provided.
Allocation concealment?	Unclear risk	Unclear; no details provided.
Blinding? All outcomes	High risk	No details of blinding.
Incomplete outcome data addressed? All outcomes	Low risk	Data reported on all patients.
Free of selective reporting?	High risk	Not followed up to live birth.