function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 2],
    ['Jarvis, Charlie', 2],
    ['Lin, Yun & Bi, Hai-Yan & Sun, Jun & Sun, Qian', 2],
    ['Linnaeus, Carolus', 1],
    ['Micucci, M. & Bolchi, C. & Budriesi, R. & Cevenini, M.', 1],
    ['Ye, Xing-Er & Nguyen, Khang Sinh & Souvannakhoummane, Keooudone', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=10)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);