The present invention relates to new crystalline forms of a purine derivative which exhibits excellent anti-tumor activity. The invention also relates to a pharmaceutical composition containing said crystalline forms as an active ingredient, and use thereof in the prevention or treatment of disease. The invention further relates to a process for preparing the crystalline forms.

The present invention relates to new crystalline forms of a purine derivative which exhibits excellent anti-tumor activity. The invention also relates to a pharmaceutical composition containing said crystalline forms as an active ingredient, and use thereof in the prevention or treatment of disease. The invention further relates to a process for preparing the crystalline forms.

A weather measurement instrument sensor includes a housing having a top surface, a bottom surface, and a sidewall that at least partially define an interior volume within the housing, a first arm coupled to the housing and rotatable relative to the housing between a stowed position and a use position, a second arm spaced apart from the first arm, coupled to the housing, and rotatable relative to the housing between a stowed position and a use position, a first attachment coupled to a distal end of the first arm to facilitate measurement of a first environmental variable, and a second attachment coupled to a distal end of the second arm to facilitate measurement of a second environmental variable. The distal end of the first arm is nearer to the distal end of the second arm in the stowed position than in the use position.

A weather measurement instrument sensor includes a housing having a top surface, a bottom surface, and a sidewall that at least partially define an interior volume within the housing, a first arm coupled to the housing and rotatable relative to the housing between a stowed position and a use position, a second arm spaced apart from the first arm, coupled to the housing, and rotatable relative to the housing between a stowed position and a use position, a first attachment coupled to a distal end of the first arm to facilitate measurement of a first environmental variable, and a second attachment coupled to a distal end of the second arm to facilitate measurement of a second environmental variable. The distal end of the first arm is nearer to the distal end of the second arm in the stowed position than in the use position.