MeSH definition : State bounded on the north by New York and Lake Erie, on the east by Delaware and
New Jersey, on the south by Delaware and Maryland, and on the west by Ohio and West
Virginia.;
MeSH annotation : PHILADELPHIA is also available;
Wikipedia link : https://en.wikipedia.org/wiki/Pennsylvania;
State bounded on the north by New York and Lake Erie, on the east by Delaware and
New Jersey, on the south by Delaware and Maryland, and on the west by Ohio and West
Virginia.
Allowable qualifiers