The concept of preconceptual care

References

• Schroeder , H. A. 1973 . Trace Elements and Man , 152 Greenwich, Connecticut : Devin‐Adair .
   Google Scholar
• Schroeder , H. A. 1973 . Trace Elements and Man , 55 Greenwich, Connecticut : Devin‐Adair .
   Google Scholar
• Schroeder , H. A. 1973 . Trace Elements and Man , 152 Greenwich, Connecticut : Devin‐Adair .
   Google Scholar
• Evans , G. W. and Johnson , P. E. 1976 . Lancet , : 1310
   PubMedGoogle Scholar
• Hurley , L. S. , Lönnerdal , B. and Stanislpwski , A. G. 1979 . Lancet , : 677
   PubMedGoogle Scholar
• Caldwell , D. F. , Oberleasand , D. and Prasad , A. S. 1973 . “Reproduc‐tive performance of chronic mildly zinc deficient rats and the effects on behaviour of their offspring” . Nutrition Reports Intern. , 7 (5) : 309 – 319 .
   Google Scholar
• Vallee , B. 1965 . Mineral Metabolism , Vol. 2b , Comar and Bronner .
   Google Scholar
• Briggs , M. H. and Briggs , M. 1971 . “Effects of steroid phar‐maceuticals on plasma zinc” . Nature , 232 : 480 – 481 . (London)
   PubMedGoogle Scholar
• Pfeiffer , C. C. and Illiev , V. 1972 . “A study of zinc deficiency and copper excess in the schizophrenias” . Intern. Review of Neurobiology , 1 : 141 – 165 .
   Google Scholar
• Smith , J. C. and Brown , E. 1976 . “The effects of oral contraceptive action on trace element metabolism—a review” . In Trace Elements in Human Health and Disease Vol II Essential and Toxic Elements , New York and London : Academic Press Inc. .
   Google Scholar
• Price , W. A. 1945 . Nutrition and Physical Degeneration , Santa Monica, California : Price‐Pottenger Nutrition Foundation Inc. .
   Google Scholar
• Underwood , E. J. 1977 . Trace Elements in Human and Animal Nutrition , 4th edition , London : Academic Press .
   Google Scholar
• Price , W. A. ref. 10, pp. 302–326.
   Google Scholar
• Otis , E. M. and Bent , R. 1954 . “Equivalent ages in mouse and human embryos” . Anatomical Record , 120 : 33 – 63 .
   PubMedGoogle Scholar
• Bryce‐Smith , D. , Deshpande , R. R. , Hughes , J. and Waldron , H. A. 1977 . “Lead and cadmium levels in stillbirths” . Lancet , : 1159
   PubMed Web of Science ®Google Scholar
• Wibberley , D. G. , Khere , A. K. , Edwards , J. H. and Rushton , D. I. 1977 . “Lead levels in human placentae from normal and malformed births” . J. Med. Genetics , 14 ( 5 ) : 339 – 345 .
   PubMed Web of Science ®Google Scholar
• Needleman , H. L. , Gunnoe , C. , Leviton , A. , Reed , R. , Peresie , H. , Maher , C. and Barrett , P. 1979 . “Deficits in psychologic and classroom performance of children with elevated dentine lead levels” . New Eng. J. Med. , 300 : 689 – 695 .
   PubMed Web of Science ®Google Scholar
• Hrdina , H. and Winneke , G. 1978 . Paper delivered at Working Conference of German Association of Hygiene and Microbiology . October 2–3 1978 , Mainz.
   Google Scholar
• Mackie , A. C. , Stephens , R. , Townshend , A. and Waldron , H. A. 1977 . “Tooth lead levels in Birmingham children” . Arch. Environ. Health , 32 : 178 – 185 .
   PubMed Web of Science ®Google Scholar
• and , P. and Stanway , A. 1978 . Breast is Best , 41 – 42 . London : Pan Books .
   Google Scholar
• Vallee , B. 1965 . Mineral Metabolism , Vol. 2b , Comar and Bronner .
   Google Scholar