function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bu, Yun', 12],
    ['Gao, Yan & Bu, Yun', 5],
    ['Hagino, Yasunori & Scheller, Ulf', 1],
    ['Hilton, W. A.', 3],
    ['Jin, Ya-Li & Bu, Yun', 3],
    ['Lubbock, John', 2],
    ['Pugh, P. J. A.', 2],
    ['Qian, Chang-Yuan & Bu, Yun & Dong, Yan & Luan, Yun-Xia', 3],
    ['Qian, Changyuan & Chu, Kelin & Liu, Xiaorui & Sun, Hongying', 4],
    ['Qian, Changyuan & Dong, Yan & Bernard, Ernest C. & Sun, Hongying', 3],
    ['Qian, Changyuan & Dong, Yan & Guo, Hua & Chu, Kelin', 9],
    ['Scheller, Ulf', 219],
    ['Scheller, Ulf & Barratt, Barbara Ingeborg Patricia', 6],
    ['Shen, Hong & Gai, Yonghua & Song, Daxiang & Sun, Hongying', 5],
    ['Yin, Zi-Wei & Li, Li-Zhen', 4],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=283)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);