function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahl, E.', 11],
    ['Angulo, Arturo', 29],
    ['Angulo, Arturo & Betts, Joel T. & González-Alemán, Néstor J.', 22],
    ['Angulo, Arturo & Naranjo-Elizondo, Beatriz & Rojas, Emmanuel', 6],
    ['Boulenger, George Albert', 9],
    ['Eigenmann, C. H.', 9],
    ['Fowler, Henry Weed', 7],
    ['Garman, S.', 7],
    ['Hubbs, Carl L.', 20],
    ['Hui, Tan Heok & Peng, Kelvin Lim Kok & Huan, Liew Jia', 8],
    ['Lucinda, Paulo H. F.', 14],
    ['Lucinda, Paulo Henrique Franco', 24],
    ['Lucinda, Paulo Henrique Franco & Reis, Roberto E.', 46],
    ['Regan, C. T.', 9],
    ['Rivas, L. R.', 12],
    ['Other (144)', 258]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=491)',
    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);