function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aistleitner, Eyjolf & Hölzler, Gerald & L, Xylocopa', 10],
    ['Boustani, Mira & Rasmont, Pierre & Dathe, Holger H.', 9],
    ['Güler, Y.', 3],
    ['I, Eritrea', 14],
    ['Lhomme, Patrick', 6],
    ['Lucia, Mariano & Alvarez, Leopoldo J. & Abrahamovich, Alberto H.', 9],
    ['Lucia, Mariano & Gonzalez, Victor H.', 7],
    ['Lucia, Mariano & Gonzalez, Victor H. & Abrahamovich, Alberto H.', 7],
    ['MELO, GABRIEL A. R.', 3],
    ['Mawdsley, Jonathan R.', 29],
    ['Melo, Gabriel A. R.', 4],
    ['Mérida-Rivas, Jorge A. & Hinojosa-Díaz, Ismael A.', 12],
    ['Schedl, Wolfgang', 5],
    ['Smith, F.', 9],
    ['Villamizar, Germán & Fernández, Fernando & Vivallo, Felipe', 13],
    ['Other (21)', 32]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=172)',
    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);