function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Damián, Alexander & Garzón, Henry X. & Baquero, Luis', 1],
    ['Damián-Parizaca, Alexander & Mitidieri-Rivera, Nicole', 4],
    ['Engels, Mathias Erich & Koch, Ana Kelly', 1],
    ['Francisco Molineros-Hurtado & Robert Tulio González Mina', 1],
    ['Jarvis, Charlie', 1],
    ['José B. Azofeifa-Bolaños & L. Rodolphe Gigant', 1],
    ['Ormerod, Paul & Kurzweil, Hubert & Watthana, Santi', 2],
    ['Pansarin, Emerson R.', 1],
    ['Pansarin, Emerson Ricardo & Menezes, Euler da Luz Fernandes', 1],
    ['Schlechter, Fridrich Richard Rudolf', 3],
    ['Smith, Johannes Jacobus', 2],
    ['V. Averyanov, Leonid & Nuraliev, Maxim S. & Thai, Tran Huy', 2],
    ['Vega, Hermes & Cetzal-Ix, William & Mó, Edgar', 9],
    ['Wood, Jeffrey James', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    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);