function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bota-Sierra, Cornelio Andrés & Novelo-Gutiérrez, Rodolfo', 7],
    ['Cezário, Rodrigo Roucourt & Guillermo-Ferreira, Rhainer', 1],
    ['Dijkstra, Klaas-Douwe B. & Kalkman, Vincent J. & Dow, Rory A.', 3],
    ['Jocque, Merlijn & Garrison, Rosser', 1],
    ['LENCIONI, F. A. A.', 19],
    ['Mendoza-Penagos, Cristian Camilo & Juen, Leandro', 1],
    ['Novelo-Gutiérrez, Rodolfo & Gómez-Anaya, José Antonio', 1],
    ['Ramírez, Alonso & Gutiérrez-Fonseca, Pablo E.', 3],
    ['Stand-Pérez, Miguel Ángel & Bota-Sierra, Cornelio Andrés', 10],
    ['Vilela, Diogo Silva & Cordero-Rivera, Adolfo', 3],
    ['Vilela, Diogo Silva & Farias, Antonio Bruno Silva', 1],
    ['Vilela, Diogo Silva & Koroiva, Ricardo', 1],
    ['Vilela, Diogo Silva & Lencioni, Frederico A. A.', 65],
    ['Vilela, Diogo Silva & Rodrigues, Marciel Elio', 1],
    ['Ávila Júnior, Walter F. & Lencioni, Frederico A. A.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=118)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);