function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bazzi, Gaia & Galimberti, Andrea & Foglini, Claudio', 3],
    ['Belle, J.', 9],
    ['Cowley, J.', 4],
    ['Dijkstra, Klaas-Douwe B. & Kalkman, Vincent J. & Dow, Rory A.', 6],
    ['Hagen, H.', 5],
    ['K. J. Morton', 5],
    ['Kirby, W. F.', 56],
    ['Lencioni, F. A. A. & Neiss, U. G. & Dutra, S. L.', 14],
    ['Lieftinck, M. A.', 4],
    ['Martin, R.', 27],
    ['Mauffray, William F. & Tennessen, Kenneth J.', 5],
    ['Mendoza-Penagos, Cristian Camilo & Pérez-Gutiérrez, León A.', 11],
    ['Selys, L. E.', 4],
    ['Selys-Longchamps, M. E.', 5],
    ['Stephens, J. F.', 4],
    ['Other (28)', 40]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=202)',
    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);