function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['De Zoysa, H. K. S. & Nguyen, Anh D. & Wickramasinghe, S.', 33],
    ['Edward, Karen L. & Harvey, Mark S.', 30],
    ['Enghoff, Henrik', 160],
    ['Golovatch, Sergei I. & Geoffroy, Jean-Jacques', 41],
    ['Golovatch, Sergei I. & Wesener, Thomas', 108],
    ['Hollier, John & Stöckli, Eduard & Wesener, Thomas', 67],
    ['Iniesta, Luiz Felipe Moretti & Bouzan, Rodrigo Salvador', 84],
    ['Iniesta, Luiz Felipe Moretti & Ferreira, Rodrigo Lopes', 22],
    ['Likhitrakarn, Natdanai & Jirapatrasilp, Parin', 17],
    ['Mesibov, Robert', 22],
    ['Mwabvu, Tarombera & Hamer, Michelle & Slotow, Rob', 20],
    ['Pimvichai, Piyatida & Enghoff, Henrik & Panha, Somsak', 50],
    ['Redman, Guy T. & Hamer, Michelle L. & Barraclough, David A.', 31],
    ['Shelley, Rowland M. & Golovatch, Sergei I.', 22],
    ['Vohland, Katrin & Hamer, Michelle', 33],
    ['Other (56)', 267]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1007)',
    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);