RDX2
X



	asthma0@*?ð@?ð@@$@@@@@$?ð@&@@7@ @@@@&@@ @@.?ð@?ð@@@*@@@?ð@?ð@?ð@*@&@.@@"@@@
	dim

	dimnames	Drug	Placebo	Much Better	Better	Unchanged/Worse	
1	
2	
3	
4	
5	
6	
7	
8
	names		Treatment	Response	Centerþ
	class	xtabs	table
	call
	xtabs
	formula
	
~
	Weight
	
+ÿ
		Treatment
	Responseþ
	Centerþþ
	data
ÿþþþ