function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bandyopadhyay, Pritha & Karmakar, Krishna & Halliday, Bruce', 12],
    ['Bolger, Thomas & Arroyo, Julio & Piotrowska, Katarzyna', 2],
    ['Cope, E. D.', 17],
    ['De Moraes, Gilberto J. & Britto, Erika P. J.', 3],
    ['Hirst, Stanley', 1],
    ['Kitrytė, Neringa & Baltrūnaitė, Laima', 8],
    ['Lareschi, Marcela & Savchenko, Ekaterina', 1],
    ['MAŠÁN, PETER & HALLIDAY, BRUCE', 1],
    ['Ma, Min & Li, Sheng-Cai & Fan, Qing-Hai', 4],
    ['Nemati, Alireza & Riahi, Elham & Khalili-Moghadam, Arsalan', 2],
    ['Reeves, Will K. & Durden, Lance A. & Ritzi, Christopher M.', 3],
    ['Uchikawa, Kimito', 5],
    ['Vinarski, Maxim V. & Korallo-Vinarskaya, Natalia P.', 16],
    ['Willmann, C.', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=81)',
    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);