function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bhansali, Sneha & Wesener, Thomas', 7],
    ['Butler, Arthur Gardiner', 12],
    ['Chen, Hui-Ming & Zheng, Chang-Bin & Jiang, Xuan-Kong', 1],
    ['Golovatch, Sergei I. & Wesener, Thomas', 18],
    ['Likhitrakarn, Natdanai & Golovatch, Sergei I. & Panha, Somsak', 1],
    ['Likhitrakarn, Natdanai & Jirapatrasilp, Parin', 10],
    ['Rosenmejer, Trine & Enghoff, Henrik & Moritz, Leif', 2],
    ['Semenyuk, Irina & Golovatch, Sergei I. & Wesener, Thomas', 3],
    ['Spiegel, Didier Van den & Golovatch, Sergei I.', 1],
    ['Srisonchai, Ruttapon & Sutcharit, Chirasak', 9],
    ['Wesener, Thomas', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=71)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);