Screening of Parkinson’s Disease Using Geometric Features Extracted from Spiral Drawings oleh Jay Chandra, Siva Muthupalaniappan, Zisheng Shang, Richard Deng, Raymond Lin, Irina Tolkova, Dignity Butts, Daniel Sul, Sammer Marzouk, Soham Bose, Alexander Chen, Anushka Bhaskar, Sreekar Mantena, Daniel Z. Press