TY  - RPRT
TI  - Optimal breast-feeding duration.
AU  - M A Murtaugh
PY  - 1997
DO  - 10.1016/s0002-8223(97)00299-x
UR  - https://pubmed.ncbi.nlm.nih.gov/9366862/
ID  - 9366862
ER  -