function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['De Moraes, Gilberto J. & Britto, Erika P. J.', 1],
    ['Flores, Rodolfo & Black, Carla & Ibanez, Alicia', 1],
    ['Frank, J. H. & Morón, M. A.', 1],
    ['Hernández-Suárez, Estrella & Martin, Jon H. & Gill, Raymond J.', 1],
    ['Jarvis, Charlie', 2],
    ['Kress, (Walter) John', 2],
    ['Mille, Christian & Henderson, Rosa C. & Cazères, Sylvie', 1],
    ['Oliveira, Adriana & Bove, Claudia', 2],
    ['Reis, Aleuny C. & Gondim, Manoel G. C. & Navia, Denise', 2],
    ['Reveal, James L. & Chase, Mark W. & Iii, - Apg & Iii, Apg', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);