Association between completing at least eight antenatal care contacts and maternal anaemia in Ghana: a cross-sectional study using causal machine learning. - Agbedinu ES; Owusu FO; Boakye K; Addai-Manu H; Karikari JK; Konadu E; Akanwariwiak RA; Asenso L; Addae M; Kanfra M; Opoku DA (BMJ open, 2026)