REFERENCES

1. Alm J, Larsson A, Zetterstrom R. Congenital hypothyroidism in Sweden. Incidence and age at diagnosis. Acta Paediatr Scand 1978; 67:1-3.

2. Alm J, Hagenfeldt L, Larsson A, Lundberg K. Incidence of congenital hypothyroidism: retrospective study of neonatal laboratory screening versus clinical symptoms as indicators leading to diagnosis. Br Med J 1984; 289: 1171-5.

3. Grant DB, Smith I. Survey of neonatal screening for primary hypothyroidism in England, Wales, and Northern Ireland 1982-84. Br Med J 1988; 296: 1355-8.

4. De Jonge EA. Congenital hypothyroidism in the Netherlands. Lancet 1976; ii:143.

5. Brock-Jacobsen B, Brandt NJ. Congenital hypothyroidism in Denmark. Arch Dis Child 1981; 56: 134-6.

6. Delange F, Illig R, Rochiccioli P, Brock-Jacobsen B. Progress report 1980 on neonatal thyroid screening in Europe. Acta Paediatr Scand 1981; 70:1-2.

7. Fisher DA, Dussault JH, Foley TP, et al. Screening for congenital hypothyroidism. Results of screening one million North American infants. J Pediatr 1979; 94:700-5.

8. Delange F, Dalhem A, Bourdoux P, et al. Increased risk of primary hypothyroidism in preterm infants. J Pediatr 1984; 105:462-9.

9. Rosentahl M, Addison GM, Price DA. Congenital hypothyroidism: increased incidence in Asian families. Arch Dis Child 1988; 63:790-3.

10. Brown AL, Fernhoff PM, Milner J, McEwen C, Elsas LS. Racial differences in the incidence of congenital hypothyroidism. J Pediatr 1981; 99:934-6.

11. Fernhoff PM, Brown AL, Elsas LS. Congenital hypothyroidism: increased risk of neonatal morbidity results in delayed treatment. Lancet 1987; i:490-1.

12. Bamforth JS, Hugh I, Lazarus J, John R. Congenital anomalies associated with hypothyroidism. Arch Dis Child 1986; 61;608-9.

13. McDonnell TJ, Cullen MJ, Law EM. Chromosomal abnomalities in congenital hypothyroidism. Ir Med J 1985; 78:129-31.

14. The New England Congenital Hypothyroid Collaborative: Effects of neonatal screening for hypothyroidism: Prevention of mental retardation by treatment before clinical manifestations. Lancet 1981; 2:1095.

15. The New England Congenital Hypothyroidism Collaborative, Hanover, New Hampshire. Neonatal Hypothyroid screening: Status of patients at 6 years of age. J Pediatr 1985; 107:915-8.

16. Hulse JA. Outcome of congenital hypothyroidism. Arch Dis Child 1984; 39:23-30.

17. Glorieux J, Dussault JH, Morissette J, et al. Follow-up at ages 5 and 7 years on mental development in children with hypothyroidsim detected by Quebec Screening Program. J Pediatr 1985; 107: 913-5.

18. Illig R, Largo RH, Weber M, et al. Sixty children with congenital hypothyroidism detected by neonatal thyroid screening: mental development at 1, 4, and 7 years : A longitudinal study. Acta Endocrinol 1986; 279 (suppl): 346-53.

19. Rovet J, Ehrlich R, Sorbara D: Interllectual outcome in children with fetal hypothyroidism. J Pediatr 1987; 110: 700-4.

20. Illig R, Largo RH, Qin Q, et al. Mental development in congenital hypothyroidism after neonatal screening. Arch Dis Child 1987; 62:1050-5.

21. Heyerdahl S, Kase BF, Olaf Lie S. Intellectual development in children with congenital hypothyroidism in relation to recommended thyroxine treatment. J Pediatr 1991; 118:850-7.

22. National Health Statistics, Malaysia 1992.

23. Barnes ND. Current topic: screening for congenital hypothyroidism: the first decade. Arch Dis Child 1985; 60:587-92.

24. Newborn Screening for Congenital Hypothyroidsim: Recommended Guidelines. American Academy of Pediatrics & American Thyroid Association. J Pediatr 1987; 80:745-9.

25. Allen DB, Hendricks SA, Sieger J, Hasssemer DJ, et al. Screening programs for congenital hypothyroidism. How can they be improved? Am J Dis Child 1988; 142:232-6.

26. Virtanen M, Maenpaa J, Pikkarainen J, Pitkanen L, et al. Etiology of congenital hypothyroidism in Finland. Acta Paediatr Scand 1989; 78:67-73.