function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alfred L. Gardner', 10],
    ['Díaz-Nieto, Juan F. & Voss, Robert S.', 1],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 48],
    ['Jansen, Martin & Engler, Marc & Blumer, Luka Moritz', 1],
    ['PATTON, JAMES L. & DA SILVA, MARIA NAZARETH F. & MALCOLM, JAY R.', 1],
    ['Part & Tate’, The Species In & Mexicana’ & And', 6],
    ['Rocha, Rita G. & Ferreira, Eduardo & Costa, Barbara M. A.', 1],
    ['Russell A. Mittermeier & Don E. Wilson', 19],
    ['Solari, Sergio & Pine, Ronald H.', 2],
    ['Voss, Robert S.', 30],
    ['Voss, Robert S. & Fleck, David W. & Jansa, Sharon A.', 5],
    ['Voss, Robert S. & Giarla, Thomas C.', 3],
    ['Voss, Robert S. & Giarla, Thomas C. & Díaz-Nieto, Juan F.', 3],
    ['Voss, Robert S. & Gutiérrez, Eliécer E. & Solari, Sergio', 2],
    ['Wilson, Don E. & Reeder, DeeAnn', 15],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=151)',
    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);