function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Batista, Abel & Vesely, Milan & Mebert, Konrad', 2],
    ['Castiglia, Riccardo & Annesi, Flavia & Bezerra, Alexandra M. R.', 2],
    ['Castiglia, Riccardo & Flores-Villela, Oscar Alberto', 3],
    ['Chaves, Gerardo & Ryan, Mason J. & Bolaños, Federico', 2],
    ['Cruz-Rodríguez, Cristian & Lynch, John D. & Cárdenas, Julieth S.', 5],
    ['Jones, Dillon & Foshee, Bethany & Fitzgerald, Lee', 2],
    ['Köhler, Gunther', 6],
    ['Köhler, Gunther & Batista, Abel & Vesely, Milan & Ponce, Marcos', 2],
    ['Köhler, Gunther & Hedges, Stephen Blair', 8],
    ['Köhler, Gunther & Pérez, Raúl Gómez Trejo', 21],
    ['Lotzkat, Sebastian & Hertz, Andreas & Bienentreu, Joe-Felix', 7],
    ['Moreno-Arias, Rafael A. & Mendez-Galeano, Miguel A.', 4],
    ['Nicholson, Kirsten E. & Crother, Brian I. & Guyer, Craig', 7],
    ['Restrepo, Adriana & Molina-Zuluaga, Claudia & Hurtado, Juan P.', 6],
    ['Ribeiro-Júnior, Marco A.', 16],
    ['Other (32)', 39]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=132)',
    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);