function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barahona-Segovia, Rodrigo M. & Riera, Pamela', 3],
    ['Bessat, Marie & Speight, Martin C. D. & Castella, Emmanuel', 1],
    ['Evenhuis, Neal L.', 1],
    ['Fallén, Carl Fredrik', 1],
    ['Fisler, Lisa & Speight, Martin C. D.', 2],
    ['Heimburg, Helge & Doczkal, Dieter & Holzinger, Werner E.', 1],
    ['Kočić, Anja & Vujić, Ante & Tot, Tamara', 7],
    ['MAZáNEK, Libor & VONIČKA, Pavel & PREISLER, JiřÍ', 4],
    ['Meigen, Johann Wilhelm', 25],
    ['Mutin, V. A.', 1],
    ['Mutin, V. A. & Barkalov, A. V.', 2],
    ['Prokhorov, A. V. & Popov, G. V. & Shparyk, V. Yu.', 1],
    ['Prokhorov, A. V. & Popov, G. V. & Zaika, M. I.', 1],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 6],
    ['Vujić, Ante & Radenković, Sne Ž Ana & Polić, Dubravka', 6],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=65)',
    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);