A similar analysis of the rates of ACR Pedi 30 responses did not show significant differences for either treatment (leflunomide group, 79 percent at both 16 and 48 weeks; P=1.00; methotrexate group, 91 percent at both 16 and 48 weeks; P=1.00).
qw stands for 'Quote word'. It usually used to create array. Ex. @arr = qw/one two three/; This will create an array with elements one, two and three. Instead of '/' symbol, any other symbol can be used. Ex. @arr = qw #one two three#; @arr = qw %one two three%; If using brackets as symbol, we have the option to use open and closing braces on either end. Ex. @arr = qw [one two three]; or, @arr = qw{one two three}; or, @arr = qw (one two three); Note: Each space considered as seperator for new element.
RCW/RCWs stands for the Revised Code of Washington and. 1  is the collection of all state laws (the RCW) or a single statute (WISHA is an RCW) (other RCWs that relate to occupational safety and health) , 2  is maintained by the Office of the Code Reviser (www.leg.wa.gov) (not by DOSH), and.