function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barcelos, Luis MD & Rodrigues, Pedro R & Bried, Joel', 2],
    ['Boano, Giovanni & Belemsobgo, Urbain & Silvano, Fabrizio', 4],
    ['Boddaert, Pieter', 1],
    ['Dean, W. Richard J. & Åhlander, Erik & Johansson, Ulf S.', 1],
    ['Forster, Johann Reinhold', 1],
    ['Frahnert, Sylke & Louette, Michel & Eckhoff, Pascal', 1],
    ['Horsfield, Thomas', 2],
    ['J. Berton C. Harris & Pamela C. Rasmussen & Ding Li Yong', 1],
    ['Jansen, Justin J. F. J.', 2],
    ['Kirwan, Guy M. & Steinheimer, Frank D. & Raposo, Marcos A.', 1],
    ['LeCroy, Mary', 1],
    ['Linnaeus, Carolus', 1],
    ['Müller, Philipp Ludwig Statius', 2],
    ['Temminck, Coenraad Jacob', 6],
    ['Vieillot, Louis Pierre', 5],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=32)',
    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);