function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Decker, Peter & Reip, Hans Simon & Voigtlaender, Karin', 4],
    ['Golovatch, Sergei & Geoffroy, Jean-Jacques & Mauriès, Jean-Paul', 26],
    ['Golovatch, Sergei I. & Geoffroy, Jean-Jacques', 9],
    ['Golovatch, Sergei I. & Vandenspiegel, Didier', 4],
    ['Golovatch, Sergei I. & Wesener, Thomas', 4],
    ['Hollier, John & Stöckli, Eduard & Wesener, Thomas', 1],
    ['Iniesta, Luiz Felipe Moretti & Bouzan, Rodrigo Salvador', 1],
    ['Likhitrakarn, Natdanai & Golovatch, Sergei I. & Panha, Somsak', 1],
    ['Likhitrakarn, Natdanai & Jirapatrasilp, Parin', 1],
    ['Liu, Weixin & Golovatch, Sergei & Wesener, Thomas', 5],
    ['Liu, Weixin & Tian, Mingyi', 5],
    ['Mesibov, Robert', 28],
    ['Perez-Gelabert, Daniel E.', 1],
    ['Srisonchai, Ruttapon & Likhitrakarn, Natdanai', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=92)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);