function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cai, Y.', 12],
    ['Cai, Y. & Ng, P. K. L.', 10],
    ['Cai, Yixiong & Choy, Satish & Ng, Peter K. L.', 13],
    ['Cai, Yixiong & Ng, Peter K. L. & Choy, Satish', 14],
    ['Cai, Yixiong & Wowor, Daisy', 4],
    ['Cai, Yixiong & Wowor, Daisy & Choy, Satish', 6],
    ['Jasmine Richard & Paul F. Clark', 19],
    ['Karge, Andreas & Rintelen, Kristina Von & Klotz, Werner', 4],
    ['Klotz, Werner & Rintelen, Thomas von & Wowor, Daisy', 5],
    ['Mazancourt, Valentin de & Boseto, David & Marquet, Gerard', 30],
    ['Mazancourt, Valentin de & Marquet, Gerard & Keith, Philippe', 5],
    ['Mazancourt, Valentin de & Marquet, Gérard & Keith, Philippe', 5],
    ['Ng, Y. Cai and P. K. L. & Ng, Cai P. K. L.', 6],
    ['Richard, Jasmine & Clark, Paul F.', 17],
    ['Rintelen, Kristina von & Cai, Yixiong', 23],
    ['Other (31)', 53]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=226)',
    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);