function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bhowmik, Suman', 1],
    ['Braby, Michael F.', 1],
    ['Chainey, John E.', 1],
    ['Davenport, Chris & Grimaldi, Nicolas', 10],
    ['Davenport, Chris & Pequin, Olivier & Vries de, Peter Jan Andre', 1],
    ['Hsu, Yu-Feng & Huang, Hang-Chi & Lu, Chen-Chih', 2],
    ['Irungbam, Jatishwor Singh & Meitei, Laishram Ricky', 9],
    ['Lo, Yik-Fui Philip', 1],
    ['Monastyrskii, Alexander L. & Lien, Vu Van', 1],
    ['Sidat, Azaz & Bhatt, Urjit', 1],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    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);