function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Das, Apurva & Singh, Navneet', 3],
    ['Davis, Donald R. & Landry, Jean-Francois', 4],
    ['Gibbs, George W.', 32],
    ['Gibbs, George W. & Kristensen, Niels P.', 11],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Hashimoto, Satoshi', 7],
    ['Imada, Yume & Kato, Makoto', 10],
    ['Issiki, Syûti T.', 13],
    ['Liao, Cheng-Qing & Hirowatari, Toshiya & Huang, Guo-Hua', 2],
    ['M. S & R. K', 2],
    ['Mey, Wolfram', 1],
    ['Mey, Wolfram & Leger, Theo & Lien, Vu Van', 1],
    ['Meyrick, Edward', 3],
    ['Philpott, Alfred', 1],
    ['Richert, Arnold & Busse, Rainer & Theimer, Franz', 1],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=95)',
    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);