The molecule providing a polar hydrogen for a hydrogen bond is called a donor
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89,90,91,92 Zhu, et al
Chahardoli R, Saboor-Yaraghi AA, Amouzegar A, Khalili D, Vakili A, Azizi F (2019) Can supplementation with vitamin D Modify thyroid autoantibodies (Anti-TPO Ab, Anti-Tg Ab) and Thyroid profile (T3, T4, TSH) in Hashimotos thyroiditis