function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Augé, Marc', 2],
    ['Bailon, Salvador', 3],
    ['Barabanov, Andrei & Milto, Konstantin', 3],
    ['Castiglia, Riccardo & Annesi, Flavia & Bezerra, Alexandra M. R.', 2],
    ['Conrad, J. L.', 15],
    ['Georgalis, Georgios L. & Čerňanský, Andrej & Klembara, Jozef', 6],
    ['Ivanov, Martin & Čerňanský, Andrej & Bonilla-Salomón, Isaac', 4],
    ['Laurenti, Joseph Nicolas', 7],
    ['Linnaeus, Carolus', 13],
    ['Nguyen, Truong Quang & Böhme, Wolfgang & Nguyen, Tao Thien', 5],
    ['Peralta-García, Anny & Valdez-Villavicencio, Jorge H.', 2],
    ['Rage, Jean-Claude & Bailon, Salvador', 2],
    ['Schools, Molly & Hedges, S. Blair', 6],
    ['Vasilyan, Davit & Cernansky, Andrej & Szyndlar, Zbigniew', 4],
    ['Šmíd, Jiří & Moravec, Jiří & Kodym, Petr & Kratochvíl, Lukáš', 2],
    ['Other (24)', 24]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=100)',
    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);