function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allen, J. A.', 1],
    ['Bezerra, Alexandra M. R. & Marinho-Filho, Jader', 1],
    ['Cláudio, Vinícius C. & Novaes, Roberto L. M.', 3],
    ['Dickerman, R. W. & Koopman, K. F. & Seymour, C.', 1],
    ['Don E. Wilson & Russell A. Mittermeier', 24],
    ['Gunnell, Gregg F. & Butler, Percy M. & Greenwood, Marjorie', 1],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 35],
    ['Jo, Yeong-Seok & Baccus, John T. & Koprowski, John L.', 3],
    ['Karl F. Koopman', 33],
    ['Miranda, João M. D. & Bernardi, Itiberê P. & Passos, Fernando C.', 2],
    ['Monadjem, Ara & Schoeman, M. Corrie & Reside, April', 1],
    ['Ramírez-Chaves, Héctor E. & Alarcón Cifuentes, Mallerly', 9],
    ['Simmons, Nancy B. & Voss, Robert S.', 2],
    ['Velazco, Paúl M. & Voss, Robert S. & Fleck, David W.', 3],
    ['Wilson, Don E. & Reeder, DeeAnn', 46],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=170)',
    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);