function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boddaert, Pieter', 1],
    ['Cavarzere, Vagner & Silveira, Luís Fábio', 2],
    ['Cibois, Alice & Vallotton, Laurent & Othman, Nagwa', 4],
    ['Fernandez, Juan Manuel & Thomann, Luz & Fandiño, Blas', 2],
    ['Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L.', 2],
    ['Lima, Rafael Dantas & Silveira, Luís Fábio', 3],
    ['Linnaeus, Carolus', 19],
    ['Lopes, Leonardo Esteves & Vasconcelos, Marcelo Ferreira De', 2],
    ['Machado, Tatiana Lemos da Silva & Marques de Oliveira, Uéslei', 6],
    ['Mlíkovský, Jiří & Frahnert, Sylke', 2],
    ['Ramoni Perazzi, Paolo & Schuchmann, Karl L.', 2],
    ['Stiles, F. Gary & Remsen, J. V. & Mcguire, Jimmy A.', 24],
    ['Swainson, William', 6],
    ['Temminck, Coenraad Jacob', 3],
    ['Vitorino, Breno Dias & Vilas Boas da Frota, Angélica', 3],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=93)',
    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);