function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boie, Friedrich', 2],
    ['Castro-Vargas, Fernando & Cruz-Mendivelso, Yerson', 3],
    ['Cuervo, Andrés M. & Stiles, F. Gary & Lentino, Miguel', 2],
    ['Fernandez, Juan Manuel & Thomann, Luz & Fandiño, Blas', 11],
    ['Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L.', 5],
    ['Hernandes, Fábio A. & Valim, Michel P. & Mironov, Sergey V.', 4],
    ['Just, João Paulo Gava & Rosoni, Jonas Rafael Rodrigues', 3],
    ['Kirwan, Guy M. & Steinheimer, Frank D. & Raposo, Marcos A.', 4],
    ['Lima, Rafael Dantas & Silveira, Luís Fábio', 6],
    ['Machado, Tatiana Lemos da Silva & Marques de Oliveira, Uéslei', 3],
    ['Mlíkovský, Jiří & Frahnert, Sylke', 5],
    ['Somenzari, Marina & Amaral, Priscilla Prudente do', 4],
    ['Swainson, William', 3],
    ['Vilas Boas da Frota, Angélica & Vitorino, Breno Dias', 4],
    ['Vitorino, Breno Dias & Vilas Boas da Frota, Angélica', 7],
    ['Other (20)', 24]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=90)',
    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);