function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Y. - Y.', 1],
    ['Deng, Shu-Qing', 1],
    ['Deng, Shuqing & Zhang, E', 1],
    ['Kottelat, Maurice', 1],
    ['Li, Xu & Zhou, Wei & Che, Xing-Jin', 6],
    ['Maurice Kottelat', 1],
    ['Ye, Enqi & Xing, Yingchun & Zhang, Chunguang & Zhao, Yahui', 1],
    ['Yi, Wen-Jing & Shen, Jian-Zhong', 1],
    ['Zheng, C. - Y. & Chen, Y. - Y.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);