TI - NOrthwest landscape PT - JOUR DP - 1999 TA - JAMA pages = {779}, VI - 281 IP - 9 AID - 10.1001/jama.281.9.779 [doi] 4100 - http://dx.doi.org/10.1001/jama.281.9.779 SO - JAMA March 3, 1999 281(9):779