function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dick, Carl W. & Graciolli, Gustavo & Guerrero, Ricardo', 1],
    ['Dickerman, R. W. & Koopman, K. F. & Seymour, C.', 1],
    ['Don E. Wilson & Russell A. Mittermeier', 6],
    ['Garbino, Guilherme S. T. & Lim, Burton K.', 15],
    ['Garbino, Guilherme S. T. & Nogueira, Marcelo R.', 1],
    ['Gutierrez, Eliecer E. & Marinho-Filho, Jader', 1],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 6],
    ['Karl F. Koopman', 6],
    ['Lim, Burton K. & Loureiro, Livia O. & Garbino, Guilherme S. T.', 1],
    ['Simmons, Nancy B. & Voss, Robert S.', 2],
    ['Turni, Hendrik & Kock, Dieter', 1],
    ['Velazco, Paúl M. & Patterson, Bruce D.', 1],
    ['Velazco, Paúl M. & Voss, Robert S. & Fleck, David W.', 3],
    ['Wilson, Don E. & Reeder, DeeAnn', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=54)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);