TY  - RPRT
TI  - Breast-feeding: "spontaneous" trends and differences.
AU  - J L Smart
AU  - F N Bamford
PY  - 1976
DO  - 10.1016/s0140-6736(76)92995-0
UR  - https://pubmed.ncbi.nlm.nih.gov/59101/
ID  - 59101
ER  -