function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barragán, Yamaly & Sánchez, Carlos & Rodríguez, Estefanía', 9],
    ['Daly, Marymegan & Ljubenkov, John C.', 13],
    ['Fautin, D. G.', 11],
    ['Gerdes, Klaas & Kihara, Terue Cristina & Martinez Arbizu, Pedro', 24],
    ['Gonzalez-Munoz, Ricardo & Simoes, Nuno & Tello-Musi, Jose Luis', 7],
    ['Gonzalez-Muñoz, Ricardo & Simões, Nuno', 10],
    ['Grajales, Alejandro & Rodríguez, Estefanía', 14],
    ['Gusmão, Luciana C. & Rodríguez, Estefanía', 25],
    ['Hertwig, Richard', 12],
    ['Izumi, Takato & Fujii, Takuma', 7],
    ['Izumi, Takato & Fujita, Toshihiko', 7],
    ['Li, Yang & Liu, Rui-Yu & Liu, J. Y. & Xu, Kuidong', 6],
    ['Rodríguez, Estefanía & López-González, Pablo J.', 19],
    ['Schejter, L. & Genzano, G. & Pérez, C. D. & Acuña, F.', 8],
    ['Vassallo-Avalos, Aurora & González-Muñoz, Ricardo', 9],
    ['Other (56)', 112]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=293)',
    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);