function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Doi, Atsushi & Arai, R. & Liu, Huanzhang', 1],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 1],
    ['Jordan, David Starr & Evermann, Barton Warren', 1],
    ['Jordan, David Starr & Fowler, Henry Weed', 1],
    ['Jordan, David Starr & Thompson, W. F.', 2],
    ['Kim, I. - S. & Kim, C. H.', 2],
    ['Kim, I. - S. & Yang, H.', 1],
    ['Miao, C. P.', 1],
    ['Mori, T.', 2],
    ['Sauvage, H. E.', 1],
    ['Wu, H. - W.', 1],
    ['Yang, Qing & Zhu, Yurong & Xiong, Bangxi & Liu, Huanzhang', 1],
    ['Ye, Enqi & Xing, Yingchun & Zhang, Chunguang & Zhao, Yahui', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    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);