PT - JOURNAL ARTICLE AU - RM Wettstein TI - Emerich v. Philadelphia Center for Human Development: The new duty to warn in Pennsylvania DP - 1999 Jun 01 TA - Journal of the American Academy of Psychiatry and the Law Online PG - 309--313 VI - 27 IP - 2 4099 - http://jaapl.org/content/27/2/309.short 4100 - http://jaapl.org/content/27/2/309.full SO - J Am Acad Psychiatry Law1999 Jun 01; 27