function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boulenger, George Albert', 4],
    ['Broadley, Donald G. & Wallach, Van', 5],
    ['Domínguez, Michel & Fong, Ansel & Iturriaga, Manuel', 2],
    ['Domínguez, Michel & Moreno, Luis V.', 2],
    ['Grismer, L. Lee & Neang, Thy & Chav, Thou & Wood, Perry L. & Jr', 1],
    ['Guedes, Thaís B. & Nogueira, Cristiano & Marques, Otavio A. V.', 4],
    ['Ineich, Ivan', 2],
    ['Merrem, Blasius', 1],
    ['Oppel, Nicolaus Michael', 1],
    ['Pyron, Robert Alexander & Wallach, Van', 1],
    ['Razzetti, Edoardo & Sindaco, Roberto & Grieco, Cristina', 1],
    ['Renoult, Julien P. & Raselimanana, Achille P.', 1],
    ['Segniagbeto, Gabriel Hoinsoude & Trape, Jean François', 2],
    ['Teynié, Alexandre & David, Patrick & Ohler, Annemarie', 1],
    ['Thomas, Richard & Hedges, Blair', 13],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=44)',
    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);