function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, I-Shiung & Harefa, Tonisman & Chang, Yung-Ching', 2],
    ['Chen, J. T. F. & Liang, Y. - S.', 1],
    ['Doi, Atsushi & Kottelat, Maurice', 1],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 2],
    ['Kottelat, Maurice', 2],
    ['Li, Z. - Y. & Chen, Y. - R.', 1],
    ['Nichols, J. T.', 1],
    ['Zheng, C. - Y.', 1],
    ['Zheng, C. - Y. & Chen, Y. - R. & Huang, S.', 1],
    ['Zheng, C. - Y. & Chen, Y. - Y.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=13)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);