function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aistleitner, E.', 16],
    ['Aistleitner, Eyjolf', 24],
    ['Bivar-De-Sousa, António & Vasconcelos, Sasha & Mendes, Luís F.', 26],
    ['Bollino, Maurizio & Costa, Mauro', 32],
    ['Braby, Michael F. & Nishida, Kenji', 17],
    ['Castro-Gerardino, Diana Jimena & Llorente-Bousquets, Jorge', 14],
    ['Chainey, John E.', 41],
    ['Ge, Si Xun & Jiang, Zhuo Heng & Wang, Jia Qi & Song, Kui', 19],
    ['Huang, Hao & Song, Kui', 15],
    ['Irungbam, Jatishwor Singh & Meitei, Laishram Ricky', 41],
    ['Liseki, Steven D. & Vane-Wright, Richard I.', 52],
    ['Llorente-Bousquets, Jorge & Nieves-Uribe, Sandra', 38],
    ['Pic, Maurice', 18],
    ['Sidat, Azaz & Bhatt, Urjit', 17],
    ['Zahiri, Reza & Nazari, Vazrick & Rajaei, Hossein', 24],
    ['Other (63)', 223]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=617)',
    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);