function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Blume, Carl Ludwig von', 5],
    ['Dang, Minh Quan & Nguyen, Manh Ha & Hoang, Nghia Son', 2],
    ['Dang, Van-Son & Naiki, Akiyo', 80],
    ['Nguyen, Dinh Hiep & Dang, Minh Quan & Le, Ngan Thi Kim', 1],
    ['Ridley, Henry Nicholas', 1],
    ['Tagane, Shuichiro & Souladeth, Phetlasy & Tanaka, Nobuyuki', 3],
    ['Valeton, Theodoric', 3],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=96)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);