function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Caterino, Michael S. & Leschen, Richard A. B. & Johnson, Colin', 5],
    ['Chen, Yan-Dong & Leschen, Richard A. B. & Bai, Ming', 4],
    ['Esser, Jens', 25],
    ['Esser, Jens & R, Afrotropical', 41],
    ['Esser, Jens & R, Nearctic & Usa & M, New', 10],
    ['Ferro, Michael L. & Gimmel, Matthew L. & Harms, Kyle E.', 3],
    ['Gimmel, Matthew L. & Leschen, Richard A. B.', 47],
    ['Herger, Peter & Germann, Christoph & Uhlig, Manfred', 3],
    ['Lyubarsky, Georgy Yu. & Bukejs, Andris', 4],
    ['Majka, Christopher & Johnson, Colin & Langor, David', 11],
    ['Majka, Christopher & Langor, David', 21],
    ['Otero, Jose Carlos & Benyahia, Yousra & Brustel, Herve', 9],
    ['Otero, Jose Carlos & Pereira, Jose Manuel', 8],
    ['Webster, Reginald P. & Sweeney, Jon D. & DeMerchant, Ian', 8],
    ['Webster, Reginald P. & Webster, Vincent L.', 10],
    ['Other (33)', 41]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=250)',
    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);