function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alfred L. Gardner', 2],
    ['Costa, Ana Raíssa Cunha & Passamani, Marcelo', 1],
    ['Gaudin, Timothy J. & Hicks, Patrick & Blanco, Yamil Di', 2],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 2],
    ['Linnaeus, Carolus', 4],
    ['Pallas, Peter Simon', 1],
    ['Pereira, Alan Deivid & Bazilio, Sergio & Orsi, Mário Luís', 1],
    ['Pierre, Meshach A. & Ignacio, Leroy & Paemelaere, Evi A. D.', 1],
    ['Russell A. Mittermeier & Don E. Wilson', 1],
    ['Shaw, George & Nodder, Frederick Polydore', 1],
    ['VOSS, ROBERT S. & LUNDE, DARRIN P. & SIMMONS, NANCY B.', 1],
    ['Voss, Robert S. & Fleck, David W.', 1],
    ['Wilson, Don E. & Reeder, DeeAnn', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);