function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Breure, Abraham S. H. & Tardy, Emmanuel', 3],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 1],
    ['Cowie, Robert H.', 2],
    ['Gould, A. A.', 2],
    ['Greke, Kristine', 2],
    ['Inkhavilay, Khamla & Sutcharit, Chirasak & Bantaowong, Ueangfa', 3],
    ['McGhie, Henry', 1],
    ['Mighels, J. W.', 1],
    ['Moore, Charles', 1],
    ['Neal, M. C.', 4],
    ['Pall-Gergely, Barna & Hunyadi, Andras & Ablett, Jonathan', 1],
    ['Pfeiffer, L.', 1],
    ['Pilsbry, Henry A. & Cooke, C. Montague', 6],
    ['Wagner, A. J.', 3],
    ['de Lima, Marcos Silva & Silva, Fernanda dos Santos', 3],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=38)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);