TY - BOOK AU - World Health Organization TI - Minor and trace elements in breast milk SN - 92-4-156121-1 U1 - 612.664 PY - 1989/// CY - Geneva PB - World Health Organization N1 - World Health Organization: Minor and trace elements in breast milk. Geneva. World Health Organization, 1989. 92-4-156121-1--(612.664WOR) ER -