| Type | MGI:General | Description | approximately 95% of homozygotes died before 3 weeks of age; 85% of mutants died by 12 days of age, and only 5% survived to weaning mutans that survived to weaning almost invariably survived to adulthood, appeared slightly smaller but were healthy daily subcutaneous injections of either indomethacin or isotonic saline failed to prolong survival |
