The prevalence and risk factors associated with Iron, vitamin B12 and folate deficiencies in pregnant women: A cross-sectional study in Mbeya, Tanzania. - John SE; Azizi K; Hancy A; Twin'omujuni A; Katana D; Shine J; Lyatuu V; Sanga A; Mwiru RS; Abdallah F; Mchau G; Lukindo T; et al. (PLOS global public health, 2023)