function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bleeker, Pieter', 1],
    ['Bogorodsky, Sergey V. & Alpermann, Tilman J. & Mal, Ahmad O.', 1],
    ['Eschmeyer, William N. Dr. & Hallacher, Leon E. & Rama-Rao, K. V.', 1],
    ['Gilchrist, J. D. F. & Thompson, W. Wardlaw', 1],
    ['Golani, Daniel & Bogorodsky, Sergey V.', 3],
    ['Günther, Albert Charles Lewis Gotthilf', 1],
    ['Kaup, Johann Jakob', 1],
    ['Mandrytsa, S. A.', 2],
    ['Matsunuma, Mizuki & Motomura, Hiroyuki', 6],
    ['Regan, C. T.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    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);