TY - GEN AU - JESKA,E L AU - GENTZKOW,C J TI - Is Pennsylvania wormy SN - 0096-0667 PY - 2000///0701 KW - Animals KW - Helminthiasis KW - epidemiology KW - Helminths KW - Humans KW - Pennsylvania KW - Trematode Infections N1 - Publication Type: Journal Article ER -