function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alderslade, P.', 2],
    ['Benayahu, Y. & van Ofwegen, L. P.', 2],
    ['Benayahu, Yehuda & McFadden, Catherine S.', 3],
    ['Benayahu, Yehuda & Van Ofwegen, Leen P.', 15],
    ['Bryce, Monika & Poliseno, Angelo & Alderslade, Philip', 11],
    ['Dautova, Tatiana N.', 3],
    ['Dautova, Tatyana N. & Savinkin, Oleg V.', 4],
    ['Fassbender, Nico & Stefanoudis, Paris V', 5],
    ['Kessel, Gustav M. & Alderslade, Philip & Bilewitch, Jaret P.', 14],
    ['Linnaeus, Carolus', 4],
    ['Mcfadden, Catherine S. & Van Ofwegen, Leen P.', 3],
    ['Namin, Samimi & Ofwegen, Van', 3],
    ['Ofwegen, Leen P. van & Benayahu, Yehuda & McFadden, Catherine S.', 3],
    ['Ofwegen, Van', 7],
    ['Schejter, L. & Genzano, G. & Pérez, C. D. & Acuña, F.', 9],
    ['Other (19)', 26]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=114)',
    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);