function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bryson, Robert W. & Grummer, Jared A. & Connors, Elizabeth M.', 2],
    ['Castiglia, Riccardo & Annesi, Flavia & Bezerra, Alexandra M. R.', 3],
    ['Flores-Villela, Oscar & Ríos-Muñoz, César A.', 1],
    ['Flores-Villela, Oscar & Smith, Eric N.', 1],
    ['Grummer, Jared A. & Bryson, Robert W.', 1],
    ['Hernandez, Tomas & Herr, Mark W. & Stevens, Skyler', 1],
    ['Paredes-León, Ricardo & García-Prieto, Luis', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=10)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);