function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Ye & Li, Cheng-De', 6],
    ['Compere, H.', 1],
    ['Craw, Alexander', 1],
    ['Dale-Skey, Natalie & Askew, Richard R. & Noyes, John S.', 14],
    ['Hayat, Mohammad', 3],
    ['Howard, L. O.', 2],
    ['Howard, L. O. & Ashmead, William Harris', 1],
    ['Madl, Michael & W, Coccophagus', 20],
    ['Qin, Yao-guang & Chen, Hai-feng & Li, Cheng-de & Chen, Ye', 4],
    ['Swezey, O. H.', 1],
    ['Wang, Zhu Hong & Xu, Li Yue & Si, Yu & Huang, Jian', 9],
    ['Westwood, John Obadiah', 2],
    ['Zhang, Lan-Wei & Hu, Hong-Ying & Zhang, Yan-Zhou', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=66)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);