function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bloch, Marcus Elieser & Schneider, J. G.', 2],
    ['Bonaparte, Charles Lucien', 1],
    ['Bonnaterre, Joseph Pierre', 1],
    ['Broussonet, P. M. A.', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Delaroche, François-Étienne', 2],
    ['Faber, F.', 2],
    ['Fabricius, O.', 2],
    ['Hamilton, F. Buchanan', 2],
    ['Linnaeus, Carolus', 18],
    ['Nardo, J. D.', 5],
    ['Risso, A.', 6],
    ['Steindachner, F.', 2],
    ['Voronina, Elena P. & Volkova, Galina A.', 2],
    ['Walbaum, J. J.', 2],
    ['Other (13)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=62)',
    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);