function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aguirre-Macedo, M. Leopoldina & Violante-González, Juan', 1],
    ['Bargiela, Jaqueline Fernandez', 2],
    ['Diaz, M. T. & Gonzalez T., G.', 1],
    ['Dutta, I. B.', 1],
    ['Dyer, William G. & Bunkley-Williams, Lucy & Williams, E. H.', 1],
    ['Kohn, Anna & Froes, O. M.', 1],
    ['Lamothe-Argumedo, R.', 1],
    ['Liu, Sheng-fa', 1],
    ['Lopes, Daniela A. & Mainenti, Adriana & Knoff, Marcelo', 1],
    ['Lumsden, Richard D.', 1],
    ['Lunaschi, Lia I. & Álvarez, Victor Hugo Merlo', 3],
    ['Lunaschi, Lía I.', 3],
    ['Margarita Ostrowski de Núñez & Nathalia J. Arredondo', 11],
    ['Szidat, L.', 5],
    ['Thatcher, Vernon E.', 4],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=41)',
    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);