function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boessenecker, Robert W.', 1],
    ['García-Prieto, Luis & Falcón-Ordaz, Jorge', 1],
    ['Hernández-Orts, Jesús S. & Viola, M. Natalia Paso', 1],
    ['Jackson, Stephen M. & Jansen, Justin J. F. J.', 3],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 22],
    ['Jo, Yeong-Seok & Baccus, John T. & Koprowski, John L.', 8],
    ['Lucero, Sergio & Rodríguez, Sara M. & Teta, Pablo', 1],
    ['Russell A. Mittermeier & Don E. Wilson', 16],
    ['Sanfelice, Daniela & Drehmer, César', 2],
    ['W. Christopher Wozencraft', 22],
    ['Wiig, Øystein & Bachmann, Lutz', 1],
    ['Wilson, Don E. & Reeder, DeeAnn', 26]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=104)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);