function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cadena-Castañeda, Oscar J. & Gutiérrez, Yeisson & Bacca, Tito', 5],
    ['Cadena-Castañeda, Oscar J. & Monzón-Sierra, José', 3],
    ['Dils, J. & Özbek, H.', 2],
    ['Greco-Spíngola, Silvana & Jorge, Carolina & Lorier, Estrellita', 4],
    ['Herhold, Hollister W & Davis, Steven R & Degrey, Samuel P', 1],
    ['Hollier, John', 10],
    ['Hollier, John & Heads, Sam W.', 1],
    ['Mariño-Pérez, Ricardo & Pocco, Martina E.', 2],
    ['Mengual, Ximo & Ruiz, Carlos & Rojo, Santos & Ståhls, Gunilla', 1],
    ['Monné, Miguel A.', 84],
    ['Pocco, Martina E. & Cigliano, María Marta', 7],
    ['Pocco, Martina E. & Lange, Carlos E. & Cigliano, María Marta', 30],
    ['Pocco, Martina E. & Rubio, Gonzalo D. & Cigliano, Marta', 2],
    ['Silva, Daniela Santos Martins & Pereira, Marcelo Ribeiro', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=153)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);