TY  - RPRT
TI  - Menstrual problems in adolescents.
AU  - L S Neinstein
PY  - 1990
DO  - 10.1016/s0025-7125(16)30510-7
UR  - https://pubmed.ncbi.nlm.nih.gov/2201852/
ID  - 2201852
ER  -