function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akkari, Nesrine & Enghoff, Henrik', 2],
    ['Aswathy, Mathilakath Dasan & Sudhikumar, Ambalaparambil Vasu', 2],
    ['Bueno-Villegas, Julián & Sierwald, Petra', 6],
    ['De Zoysa, H. K. S. & Nguyen, Anh D. & Wickramasinghe, S.', 8],
    ['Decker, Peter & Reip, Hans Simon & Voigtlaender, Karin', 4],
    ['Enghoff, Henrik', 7],
    ['Gadallah, Neveen S. & Schmid-Egger, Christian', 2],
    ['Golovatch, Sergei I.', 3],
    ['Golovatch, Sergei I. & Wesener, Thomas', 22],
    ['Hollier, John & Stöckli, Eduard & Wesener, Thomas', 14],
    ['Keller, Oliver & Dunn, Ann & Soto-Adames, Felipe', 4],
    ['Likhitrakarn, Natdanai & I. Golovatch, Sergei', 2],
    ['M., Luiz F. & Iniesta & Bouzan, Rodrigo S. & R., Claudio A.', 3],
    ['Mesibov, Robert', 9],
    ['Shelley, R. M.', 9],
    ['Other (12)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=110)',
    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);