Family relationship, environmental, and cognitive correlates of adolescents' drug use in Cameroon: a school-based cross-sectional study across three secondary schools. - Noah JPYA; Tangwa SL; Kana R; Yembe WN; Ndié J; Kemme MK; Mfiya F; Angoe CD; Bilè Komokcheua R; Kana PMJ; Likeng JLN (BMC public health, 2026)