Elevated homocysteine levels may moderate and mediate the association between HIV and cognitive impairment among middle-aged and older adults in an underserved population in Baltimore, Maryland. - Lai H; Treisman G; Celentano DD; Gerstenblith G; Mandler RN; Khalsa J; Charurat M; Lai S; Pearson G (International journal of STD & AIDS, 2024)