function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barrio-Amorós, César L. & Brewer-Carías, Charles', 2],
    ['Cambridge, O. P.', 1],
    ['Carvajal-Endara, Sofía & Coloma, Luis A.', 7],
    ['Catenazzi, Alessandro & Lehr, Edgar', 1],
    ['Cruz-Rodríguez, Cristian & Lynch, John D. & Cárdenas, Julieth S.', 3],
    ['Dorigo, Thiago Arnt & Vrcibradic, Davor', 1],
    ['Duellman, William E. & Barley, Anthony J. & Venegas, Pablo J.', 3],
    ['Duellman, William E. & Catenazzi, Alessandro', 1],
    ['Folly, Manuella & Kirchmeyer, Juliana & Bezerra, Andressa M.', 3],
    ['Hill, Robert L. & Martin, Kathryn G. & Stanley, Edward', 3],
    ['Jr, Mauro Teixeira & Vechio, Francisco Dal', 2],
    ['Juncá, Flora Acuña & Nunes, Ivan', 1],
    ['Lynch, John D.', 7],
    ['Moraes, Leandro João Carneiro de Lima & Pavan, Dante', 2],
    ['Walker, Marina & Wachlevski, Milena & Nogueira-Costa, Paulo', 7],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=48)',
    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);