function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Basilewsky, S.', 1],
    ['Bleeker, Pieter', 5],
    ['Canestrini, G.', 1],
    ['Cantor, Theodore', 1],
    ['Cuvier, Georges & Valenciennes, A.', 11],
    ['Day, F.', 2],
    ['Hamilton, F. Buchanan', 6],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 1],
    ['Jordan, David Starr & Evermann, Barton Warren', 1],
    ['McClelland, J.', 3],
    ['Playfair, R. L.', 1],
    ['Richardson, John', 2],
    ['Sauvage, H. E.', 1],
    ['Sauvage, H. E. & Dabry de Thiersant, P.', 1],
    ['Steindachner, F.', 1],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=41)',
    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);